The Person–Case Constraint (PCC) in translation is a family of restrictions on combinations of person-marked arguments, especially in clitic clusters and agreement systems. A classic Romance-style pattern blocks certain combinations in which a first- or second-person direct-object clitic co-occurs with a dative clitic, particularly a third-person dative. Languages repair or avoid these combinations in different ways: one participant may be expressed as a full prepositional phrase, a clitic may change form, one clitic may disappear, or a different syntactic construction may be required.
People searching for Person Case Constraint, PCC linguistics, clitic cluster restriction, dative accusative clitics, me lui constraint, weak PCC, strong PCC are solving a pronoun-combination problem rather than a meaning problem. The underlying event can be perfectly ordinary—She introduced me to him, They showed you to her—yet a language may reject one compact double-clitic realization. Translation must therefore preserve both participants and their roles even when the source uses a repair construction instead of the theoretically expected clitic cluster.
This article owns the Person–Case Constraint precision layer for eduKateSG. It does not replace Clitic Doubling, Clitic Climbing, Ditransitive Alignment or Polypersonal Agreement. Its narrow task is to identify PCC-sensitive configurations, distinguish theme or direct object from goal, recipient or dative, preserve first, second and third-person features, recognize strong, weak and language-specific PCC patterns, interpret repair strategies, and prevent a source restriction on form from becoming a missing participant or reversed event in the target.
Quick Read
Write two internal arguments separately: THEME/DIRECT OBJECT and GOAL/RECIPIENT/DATIVE. Then mark PERSON = 1, 2 or 3 for each. If a clitic combination is blocked by the source grammar, preserve the event and look for the source repair. Do not delete a participant merely because the compact cluster is impossible.
One-Sentence Answer
Translate PCC-sensitive constructions by preserving both internal arguments and their person features while treating the source clitic restriction as a morphosyntactic packaging problem, not as a change in event meaning.
Why This Precision Layer Matters
The PCC is a perfect translation trap because absence can look semantic. A language refuses a certain clitic cluster, so one argument appears in a different form. A naive system may conclude that the repaired phrase is optional, emphatic or structurally unrelated. In fact, the grammar is often protecting the same recipient–theme relation through another realization.
What the PCC Is
The Person–Case Constraint is a family of restrictions on how person features can co-occur in certain multi-argument clitic or agreement configurations.
The main translation risk is treating an impossible clitic cluster as evidence that the underlying event itself is impossible. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to separate event roles from morphological realization. A language can freely express ‘She introduced me to him’ but forbid a particular compact me + to-him clitic sequence. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate the event, then account for the repair. Restore the full event frame first, then re-encode person and case according to target grammar.
Classic Dative + Accusative Context
The best-known PCC effects occur when a dative or goal clitic and an accusative or theme clitic occur together.
The main translation risk is merging the two objects or swapping their cases. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to label RECIPIENT or GOAL and THEME separately before reading clitic order. Give it to me contains a theme and recipient even if the source encodes both as clitics. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve both roles. Restore the full event frame first, then re-encode person and case according to target grammar.
First- and Second-Person Direct Objects
Many PCC systems are especially sensitive to first- and second-person direct objects in the presence of another object clitic.
The main translation risk is dropping first or second-person reference when the compact form is blocked. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to record person features independently from clitic availability. ME or YOU as theme can trigger restrictions that IT, HIM or HER as theme does not. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, keep the correct speech-act participant. Restore the full event frame first, then re-encode person and case according to target grammar.
Third-Person Datives
A third-person dative clitic is central to many classic PCC descriptions because it can block or conflict with a local-person direct object.
The main translation risk is translating the dative clitic as the direct object merely because it is the only clitic that surfaces. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to map dative role before cluster formation. TO HIM and ME are distinct participants in ‘introduce me to him’. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve goal or recipient and theme. Restore the full event frame first, then re-encode person and case according to target grammar.
Strong PCC
Strong PCC labels restrictive systems where combinations are tightly limited, often requiring the direct object in a multi-clitic cluster to be third person under relevant conditions.
The main translation risk is assuming every language follows the strongest formulation. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to classify the source language’s actual paradigm. A language may reject both first-over-second and second-over-first direct-object combinations with a dative clitic. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, use language-specific rules. Restore the full event frame first, then re-encode person and case according to target grammar.
Weak PCC
Weak PCC permits more combinations than strong PCC and often focuses on the incompatibility of a third-person dative with a first or second-person accusative.
The main translation risk is applying a strong ban to grammatical weak-PCC combinations. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to build a person-pair table. Some local-person pairings can be allowed while 3DAT + 1 or 2ACC is blocked. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate only the restriction the language actually has. Restore the full event frame first, then re-encode person and case according to target grammar.
PCC as a Family of Constraints
Modern work treats PCC effects as a cluster of related person restrictions rather than one identical universal surface rule.
The main translation risk is forcing every apparent person restriction into one canonical formula. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to compare clitic, agreement and repair paradigms. Inuktitut can show PCC-like person complementarity with a different underlying analysis. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve observable source behavior without overclaiming theory. Restore the full event frame first, then re-encode person and case according to target grammar.
Clitic Clusters
The restriction is often visible in sequences of weak object clitics.
The main translation risk is translating clitic order as semantic role order. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to identify each clitic’s case and person before considering order. French and Italian have language-specific dative and accusative cluster orders. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate roles, not sequence. Restore the full event frame first, then re-encode person and case according to target grammar.
French Repairs
French provides classic examples where certain double-clitic combinations are unavailable and an independent prepositional phrase is used instead.
The main translation risk is treating the full phrase as optional emphasis. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to ask whether it is the grammatical alternative required by the person combination. A to-him phrase can replace a blocked dative clitic in a repaired construction. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate the recipient normally. Restore the full event frame first, then re-encode person and case according to target grammar.
Spanish and Romance Variation
Romance languages differ in clitic inventory, cluster order and person restrictions.
The main translation risk is assuming a French PCC repair applies identically to Spanish, Italian or Catalan. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to identify the exact language and dialect. A cluster grammatical in one Romance language can be blocked or morphologically altered in another. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve source-specific packaging. Restore the full event frame first, then re-encode person and case according to target grammar.
Greek PCC Patterns
Modern Greek has played an important role in analyses of clitic person restrictions and strong or weak PCC variation.
The main translation risk is copying Romance case labels mechanically. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to use the Greek clitic paradigm and argument roles. Greek double-object clitics exhibit person restrictions under language-specific conditions. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate both participants. Restore the full event frame first, then re-encode person and case according to target grammar.
Basque and Agreement Systems
PCC-like constraints have also been discussed beyond Romance, including agreement-rich systems such as Basque.
The main translation risk is equating all PCC phenomena with Romance clitics. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to ask whether the restriction is on clitics, agreement or both. A person combination may be visible through auxiliary agreement rather than a clitic string. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve person and role features. Restore the full event frame first, then re-encode person and case according to target grammar.
Pseudo-PCC Effects
Some languages show person complementarity that resembles PCC on the surface but has a distinct structural source.
The main translation risk is calling every missing combination PCC without evidence. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to treat PCC as a diagnostic hypothesis. Inuktitut research argues that certain person restrictions are pseudo-PCC rather than the same defective-intervention pattern proposed elsewhere. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate observable forms without forcing theory. Restore the full event frame first, then re-encode person and case according to target grammar.
Theme vs Recipient
PCC diagnosis depends on keeping the direct-object theme and indirect-object goal roles distinct.
The main translation risk is swapping who receives what because person marking is salient. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to write GIVE(THEME, RECIPIENT) or SHOW(THEME, GOAL) explicitly. Show me to him differs from show him to me. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve event direction. Restore the full event frame first, then re-encode person and case according to target grammar.
Animacy
Clitic and dative systems often interact with animacy, but PCC itself is principally about person configurations under particular morphosyntax.
The main translation risk is explaining every restriction as animacy. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to separate PERSON from ANIMACY and differential object marking. First and second person are inherently discourse participants but the grammar may still have independent animacy rules. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve both dimensions. Restore the full event frame first, then re-encode person and case according to target grammar.
Case
The C in PCC reflects the interaction between person and grammatical or case configurations, but analyses vary in how case is represented.
The main translation risk is translating abstract case theory into lexical prepositions. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to use case to identify argument relation. Dative-like and accusative-like arguments behave asymmetrically in classic patterns. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate target case naturally. Restore the full event frame first, then re-encode person and case according to target grammar.
Person Hierarchies
PCC analyses often appeal to the privileged status of first and second person or person-feature hierarchies.
The main translation risk is assuming the higher person is always the agent. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to keep PERSON PROMINENCE separate from THETA ROLE. A first-person participant can be theme or object rather than actor. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve who acts on whom. Restore the full event frame first, then re-encode person and case according to target grammar.
Feature Competition
Many theories model PCC as competition or locality among person-bearing arguments for agreement or clitic licensing.
The main translation risk is turning theoretical competition into semantic conflict. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to separate formal explanation from event content. Two participants do not compete in the story; their grammatical features interact in morphosyntax. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate the event normally. Restore the full event frame first, then re-encode person and case according to target grammar.
Repair with Full Prepositional Phrase
A blocked clitic can be replaced by an independent phrase such as to him or to her under some systems.
The main translation risk is treating the expanded phrase as added emphasis or a new participant. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to link it to the same argument slot as the missing clitic. A repair does not add another recipient; it realizes the existing one differently. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate one recipient. Restore the full event frame first, then re-encode person and case according to target grammar.
Repair with Strong Pronoun
Some languages use a strong pronoun where a weak clitic combination is unavailable.
The main translation risk is adding contrastive stress that the source does not intend. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to ask whether strong form is grammatical repair or true focus. The strong pronoun can be structurally required rather than emphatic. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, avoid unnecessary target emphasis. Restore the full event frame first, then re-encode person and case according to target grammar.
Clitic Replacement or Form Change
In some systems one clitic surfaces in an unexpected form when combined with another.
The main translation risk is assuming the changed form means a different case or participant. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to compare single-clitic and cluster paradigms. A cluster-specific form can replace an otherwise expected dative or accusative shape. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve underlying role. Restore the full event frame first, then re-encode person and case according to target grammar.
Clitic Omission
Certain grammars or analyses involve non-expression of one weak form with meaning recoverable elsewhere.
The main translation risk is deleting the participant from target semantics. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to recover the argument from syntax and context. Missing overt clitic does not necessarily mean missing event participant. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, restore target pronoun or phrase if required. Restore the full event frame first, then re-encode person and case according to target grammar.
Ditransitives
Give, show and send-type predicates provide natural PCC environments because they contain theme and recipient or goal internal arguments.
The main translation risk is reducing the event to one object because the cluster is restricted. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to map the full ditransitive frame. She showed me to the teacher contains two non-subject participants. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve both. Restore the full event frame first, then re-encode person and case according to target grammar.
Causatives and PCC
Causative constructions can create additional internal arguments and trigger person restrictions in some languages.
The main translation risk is confusing causee with recipient or theme. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to draw CAUSER, CAUSEE, THEME and other roles separately. A causative can create a dense clitic configuration even when the simple verb would not. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate all layers. Restore the full event frame first, then re-encode person and case according to target grammar.
Applicatives and PCC
Applicative morphology can add beneficiaries or recipients that interact with clitic and agreement systems.
The main translation risk is assuming the PCC-sensitive dative must be lexical. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to identify whether the argument is selected or applicative. A benefactive dative can participate in similar person constraints under a language’s grammar. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve beneficiary meaning. Restore the full event frame first, then re-encode person and case according to target grammar.
Clitic Doubling and PCC
A full DP may be doubled by a clitic while person restrictions affect cluster composition.
The main translation risk is counting the full DP and clitic as two recipients. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to link doubled material before diagnosing PCC. A dative DP plus clitic is one argument; adding an accusative clitic can trigger a PCC condition. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate one doubled participant. Restore the full event frame first, then re-encode person and case according to target grammar.
Clitic Climbing and PCC
Clitics can climb in restructuring contexts while still being subject to cluster restrictions.
The main translation risk is using higher placement to reassign argument roles. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to diagnose PCC on the underlying clitic configuration, not only surface host. A climbed dative plus accusative pair can remain arguments of the lower verb. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve lower event roles. Restore the full event frame first, then re-encode person and case according to target grammar.
Imperatives
Commands often use special clitic orders or enclisis and proclisis while PCC restrictions can remain relevant.
The main translation risk is treating imperative placement as a repair. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to separate mood placement from person compatibility. Give me to him-type combinations may require the language’s normal imperative plus PCC-compliant realization. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve directive force. Restore the full event frame first, then re-encode person and case according to target grammar.
Negation
Negation can change clitic placement without changing the underlying PCC-sensitive argument combination.
The main translation risk is assuming a different cluster position removes the person restriction. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to hold argument features constant across polarity. Negative and affirmative clauses can share the same incompatible person pairing despite different clitic positions. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, preserve both polarity and participant roles. Restore the full event frame first, then re-encode person and case according to target grammar.
Translation into English
English object pronouns do not have the same clitic-cluster PCC system, so a source repair may translate into an ordinary pronoun sequence or prepositional phrase.
The main translation risk is imitating the source repair as marked English. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to translate the underlying event and natural argument realization. A source forced to use a full recipient phrase may map to ordinary English ‘introduce me to him’. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, let the target ignore source PCC packaging. Restore the full event frame first, then re-encode person and case according to target grammar.
Translation into Another PCC Language
A target language can have its own PCC subtype and repair strategy.
The main translation risk is copying source clitic forms or repair directly. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to decode roles and person features first, then test target cluster grammar. A source strong-PCC repair may be unnecessary or different in a weak-PCC target. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, regenerate according to target constraints. Restore the full event frame first, then re-encode person and case according to target grammar.
AI Participant-Deletion Bias
Models can treat the absence of an expected clitic as evidence that the participant is absent.
The main translation risk is dropping theme or recipient. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to reconstruct the lexical verb’s full valency before interpreting the repair. A blocked clitic combination does not reduce the number of event participants. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, restore the missing argument. Restore the full event frame first, then re-encode person and case according to target grammar.
AI Role-Swap Bias
Because PCC discussions emphasize dative, accusative and person labels, models can swap theme and recipient when forms change under repair.
The main translation risk is reversing who is shown or given to whom. Because the source restriction can force a different surface form without changing the underlying event, a fluent translation can silently lose or swap one of the participants.
A practical diagnostic is to freeze semantic roles before clitic generation. First person can be theme while third person is goal, or the reverse. Once the semantic roles and person features are secure, the target can use its own clitic, strong-pronoun, prepositional-phrase or agreement strategy. The source repair itself need not survive.
For recovery, translate event direction independently of morphology. Restore the full event frame first, then re-encode person and case according to target grammar.
Worked Examples
Worked Example 1: Blocked Double Clitic
Source problem: A source language rejects a cluster combining a third-person dative with a first-person direct-object clitic.
Diagnosis: The event still contains recipient and theme.
Target strategy: Use the source’s repair phrase in analysis, then translate naturally as “She introduced me to him.”
Verification: Both participants must survive.
Worked Example 2: Strong-Pronoun Repair
Source problem: A weak dative clitic is replaced by an independent pronoun phrase.
Diagnosis: The strong form is grammatical packaging, not necessarily emphasis.
Target strategy: Translate the recipient normally unless source context independently marks contrast.
Verification: Do not add “HIM, specifically” without evidence.
Worked Example 3: Ditransitive Role Check
Source problem: Two pronouns occur around a give-type verb and one cluster form is irregular.
Diagnosis: Theme and recipient must be identified from case and lexical grammar before person hierarchy.
Target strategy: Translate “She gave it to me,” not a role-reversed alternative.
Verification: Verify who receives what.
Worked Example 4: Pseudo-PCC Description
Source problem: A linguistic source says a language has PCC-like person complementarity but argues for a different mechanism.
Diagnosis: The translation must preserve the descriptive restriction and the analytical caution.
Target strategy: Use “PCC-like” or “person-complementarity effect” where appropriate.
Verification: Do not present a disputed theoretical classification as settled fact.
Practical Diagnostic Workflow
Build a PCC TABLE: VERB, THEME OR DIRECT OBJECT, THEME PERSON, GOAL OR RECIPIENT OR DATIVE, GOAL PERSON, CLITIC FORMS, CLUSTER ALLOWED?, PCC TYPE, REPAIR USED, DOUBLING?, CLIMBING?, AGREEMENT. Freeze semantic roles before considering surface forms.
Run the full-phrase paraphrase test. Replace every clitic with transparent NPs: “show ME to HIM,” “give THE BOOK to YOU.” If the event is clear, then re-apply the source clitic grammar and observe which combinations fail. Translation should preserve the transparent event even when source morphology cannot compress it.
Verification Method
From the target, identify both internal arguments, their person values and their roles. Confirm that the repair did not create emphasis or an extra participant unless the source actually does so. The source’s morphosyntactic gap should not become a semantic gap.
Recovery Method
If a participant disappeared, return to the verb’s valency and restore both internal arguments. If theme and recipient were swapped, rebuild the event with full noun phrases. If a repair was overtranslated as focus, remove emphasis unless independently licensed.
Practice Sequence
Take SHOW, GIVE, INTRODUCE and SEND. Build combinations where theme and recipient are first, second and third person. Mark which combinations a hypothetical strong-PCC and weak-PCC language allows. Create repair phrases for blocked combinations, then translate them into English.
Quality-Assurance Checklist
- Identify theme or direct object.
- Identify goal or recipient or dative.
- Record person for both arguments.
- Distinguish strong versus weak PCC.
- Use language-specific PCC rules.
- Do not equate person prominence with agenthood.
- Recognize full-phrase repairs.
- Recognize strong-pronoun repairs.
- Recognize clitic form replacement or omission.
- Preserve ditransitive direction.
- Track clitic doubling separately.
- Track clitic climbing separately.
- Distinguish true PCC from PCC-like effects.
- Audit AI participant deletion.
- Audit AI role swapping.
Frequently Asked Questions
What is the Person–Case Constraint?
A family of restrictions on certain combinations of person-marked arguments, especially dative and accusative clitics or agreement markers.
What is the classic PCC environment?
A ditransitive-like configuration with a dative or goal clitic and a direct-object or theme clitic, especially when the direct object is first or second person.
What is Strong PCC?
A relatively restrictive subtype that sharply limits local-person direct objects in relevant multi-clitic configurations.
What is Weak PCC?
A less restrictive subtype, commonly characterized by blocking third-person dative plus first or second-person accusative combinations while allowing more local-person combinations.
Does PCC remove an argument from the event?
No. It restricts how the argument combination can be morphologically or syntactically realized.
What is a PCC repair?
An alternative realization, often a full prepositional phrase or strong pronoun, used where the expected clitic cluster is unavailable.
Is PCC only a Romance phenomenon?
No. PCC and PCC-like person restrictions have been studied in Greek, Basque, Inuktitut and many other systems, though analyses differ.
Why does AI fail?
A blocked or changed clitic form can look like a missing participant or changed semantic role unless the full event frame is reconstructed first.
Internal Routes Through the eduKate Translation Architecture
Route co-referential clitic plus DP structures to Clitic Doubling and Doubled Pronouns: https://edukatesg.com/2026/09/19/translate-precisely-clitic-doubling-doubled-pronouns-object-clitics-resumptives/
Route high and low clitic placement to Clitic Climbing and Restructuring Predicates: https://edukatesg.com/2026/09/19/translate-precisely-clitic-climbing-restructuring-predicates-romance-object-clitics/
Route theme and recipient alignment to Ditransitive Alignment: https://edukatesg.com/2026/09/19/translate-precisely-ditransitive-alignment-agent-recipient-theme-indirective-secundative-neutral/
Route multi-argument verbal indexing to Polypersonal Agreement and Argument Indexing: https://edukatesg.com/2026/09/19/translate-precisely-polypersonal-agreement-argument-indexing-subject-object-person-number/.
Final Principle
The PCC constrains forms, not events. Keep theme, recipient and person features intact, recognize the source repair strategy, and let the target express the same participants through whatever pronoun or phrase system its grammar permits.