English can build a noun-like expression out of an entire clause without placing an ordinary head noun before it.
Take what you need. Whoever arrives first can open the room. Choose whichever route is faster. I will support whatever decision you make.
The expressions what you need, whoever arrives first, whichever route is faster and whatever decision you make behave as larger noun-like units. Yet they do not contain an external noun such as the thing, the person or the route.
These are commonly called free relatives, also known in some grammatical traditions as fused relatives or fused relative constructions.
For the wider architecture, begin with How English Works and the English Learning Hub. Free relatives are related to, but distinct from, ordinary relative clauses.
The shortest useful definition
A free relative is a clause introduced by a relative-like wh-expression that functions as a noun phrase without an external head noun.
What you need can be paraphrased roughly as the thing that you need. Whoever arrives first can be paraphrased as the person who arrives first or, depending on context, any person who arrives first.
The wh-expression does two jobs at once: it helps form the subordinate clause, and it contributes the semantic content that an external noun would otherwise provide.
Ordinary relatives have a head noun
Consider an ordinary relative clause:
the book that Maya borrowed
The head noun is book. The relative clause that Maya borrowed modifies it.
Now compare:
what Maya borrowed
There is no external noun before the clause. The expression what contributes something like “the thing that,” so the whole clause can occupy a noun-phrase position by itself.
This is the key difference between an ordinary headed relative and a free relative.
Why fused is a useful word
Some grammars prefer the term fused relative because the introductory word appears to combine two functions that are separate in an ordinary relative construction.
In the thing that you need, the thing provides the noun-like head and that introduces the relative clause. In what you need, those roles are fused into one expression.
The terminology differs across linguistic frameworks, but the reader job is stable: understand how a clause can function as a referential unit without an overt noun outside it.
What: the thing or things that
What is one of the most common free-relative markers.
- I understand what you mean.
- Take what you need.
- What she said surprised me.
- We repaired what was damaged.
In each case, the whole what-clause fills a noun-like role: object, subject or complement.
A rough paraphrase often uses the thing(s) that, but the paraphrase should not be mistaken for an exact word-for-word analysis. Free relatives have their own grammatical behaviour.
Whoever: the person who, or any person who
Whoever often creates a free relative referring to a person whose identity is unknown, irrelevant or unrestricted within a set.
- Whoever arrives first should call me.
- Give the key to whoever is on duty.
- I will support whoever the committee selects.
Depending on context, whoever can mean roughly “the person who” or “any person who satisfies the condition.”
This gives the construction a quantificational flavour. The identity can vary, but the clause defines the property that determines membership.
Whatever: unrestricted thing or content
Whatever can refer to any entity, action, proposition or choice satisfying the embedded description.
- Take whatever you need.
- Whatever happens, stay calm.
- I will accept whatever decision they reach.
In the first and third examples, the free relative fills a noun-like role. In Whatever happens, stay calm, the construction has a broader concessive or conditional flavour: no matter what happens, the directive remains.
This shows that -ever forms can cross the boundary between nominal free relatives and broader subordinate constructions. Function must be diagnosed from the whole sentence.
Whichever: selection from a known or limited set
Whichever typically implies a choice from an available set.
- Choose whichever route is shorter.
- Take whichever book you prefer.
- Whichever team wins will advance.
Unlike bare what, whichever often foregrounds alternatives. The set may be explicit or contextually understood.
This makes whichever relevant to comparison and decision logic: the clause defines a selection rule over candidates.
Where and when can build free-relative-like units
English can use where and when in constructions that behave like free relatives or fused location/time expressions.
- Stay where you are.
- Put the chair where the light is strongest.
- We will leave when the meeting ends.
Classification depends on function. Where you are can function as a location complement roughly paraphrasable as the place where you are. A when-clause may instead function straightforwardly as an adverbial time clause.
This is a useful reminder that grammatical categories meet at boundaries. The goal is not to force every example into one box but to explain what role the clause performs.
Free relatives can be subjects
A free relative can occupy the subject position of a larger clause:
- What she said surprised everyone.
- Whoever finishes first wins.
- Whatever happens next will matter.
The entire subordinate structure behaves as the entity or proposition about which the main predicate says something.
This is one reason free relatives are cognitively powerful: they turn a complex description into a single participant in a larger event.
Free relatives can be objects
They also function naturally as objects:
- I remember what you said.
- Choose whichever you prefer.
- Invite whoever you trust.
The main verb selects a noun-like complement, but that complement contains a full subordinate predication.
This is the clause–noun interface: a propositionally rich structure occupies a grammatical position commonly filled by a noun phrase.
Free relatives after prepositions
Because the whole unit behaves noun-like, it can often follow a preposition.
- Give it to whoever asks first.
- We argued about what should happen next.
- She focused on whatever evidence was available.
The preposition takes the whole free relative as its complement.
This is a strong diagnostic that the construction is functioning as a nominal unit rather than merely as an adverbial clause.
What versus that
A common learner error is to combine an external head noun with free-relative what:
- Correct headed relative: the thing that I need
- Correct free relative: what I need
- Non-standard in the intended structure: the thing what I need
The reason is structural. What already contains the noun-like contribution that the thing would otherwise supply.
Adding both duplicates the head function in standard formal English.
Free relative or embedded question?
This is one of the most important distinctions.
Compare:
- I ate what Maya cooked.
- I wonder what Maya cooked.
In the first, what Maya cooked refers to the food or thing Maya cooked. It behaves like a free relative.
In the second, what Maya cooked expresses a question whose answer is unknown. It is an embedded interrogative.
The surface words are identical. The selecting verb and semantic role determine the structure.
The paraphrase test
A useful diagnostic is to try two paraphrases.
- If what P ≈ the thing that P, a free-relative analysis is likely.
- If what P ≈ the answer to the question “what P?”, an embedded interrogative analysis is likely.
I took what she offered ≈ I took the thing that she offered. Free relative.
I asked what she offered ≈ I asked which thing she offered. Embedded question.
Meaning and selection matter more than the initial wh-word alone.
Whoever versus who
Who commonly introduces a question or ordinary relative clause. Whoever can build a free relative with an unrestricted or conditional interpretation.
- Who called? — direct question.
- the person who called — ordinary relative.
- Whoever called left no message. — free relative.
The -ever form turns an unknown identity into a rule: whichever person satisfies the embedded condition is selected.
Case inside whoever constructions
Formal case questions can arise with whoever and whomever.
The most useful principle is to determine the grammatical role of the wh-form inside its own clause.
- Give it to whoever arrives first. — whoever is subject of arrives.
- Give it to whomever you choose. — in very formal usage, whomever is object of choose.
In contemporary everyday English, whoever is increasingly common across positions. Writers should match the register they are targeting rather than treating case marking as the only measure of clarity.
Free relatives and quantification
Whoever, whatever and whichever often behave as if they define a set through a property.
Whoever submits the form by Friday will be considered. The clause defines the eligible set: all persons satisfying the submission condition.
Take whatever you need. The permitted set is not a named list but any relevant items satisfying the relation “you need x.”
This makes free relatives useful in rules because they can define membership dynamically.
Free relatives and conditional logic
Some -ever constructions have a conditional flavour.
Whoever finishes first wins. For any person x, if x finishes first, x wins.
Whatever happens, continue. Across all relevant event branches, the directive remains stable.
The first is strongly noun-like; the second is more concessive-adverbial. Both rely on unrestricted selection over possible values.
This connects to Conditionals and Logical Dependency.
Free relatives and definiteness
Some free relatives feel definite: what Maya bought can refer to a specific thing or set of things determined by Maya’s buying.
Others, especially -ever forms, can feel more free-choice or universally open: Take whatever you like.
English therefore uses free-relative morphology to shape not only syntactic category but the way a referent is selected from a set.
Free relatives and pseudo-clefts
Pseudo-cleft constructions often contain a free-relative-like what-clause:
What I need is a break.
The first part behaves like “the thing that I need,” while the second identifies its value.
This is why free relatives connect naturally to Clefting and Focus Packaging. The free-relative structure supplies the open conceptual slot that the later phrase fills.
Free relatives and information density
A free relative can compress a descriptive noun phrase into one clause.
We accepted the proposal that the committee recommended names a head noun and modifies it. We accepted what the committee recommended removes the external head and lets the whole clause supply the referent.
The second version is compact but less lexically specific. We know the selected entity through the relation “the committee recommended x,” not through an independent noun label.
Writers can therefore choose between naming a category directly and letting the clause define the referent.
Ambiguity between entity and question
Some verbs permit interpretations close enough that readers must use context.
I discovered what Maya had hidden. This can naturally mean I discovered the hidden object or content. It can also be understood as discovering the answer to the question of what she had hidden.
The semantic distinction can become subtle because knowing an entity and knowing the answer to an embedded question often converge in real contexts.
Advanced analysis therefore tests both syntax and interpretation rather than assuming every what-clause belongs to one category.
Free relatives in instructions
Instructions and policies use free relatives because they can define an action over unknown future referents.
- Take whatever equipment you need.
- Report whoever enters without authorisation.
- Use whichever route remains open.
The rule does not need to know the identity of the future object, person or route in advance. The subordinate clause defines how the referent will be selected when the situation occurs.
Free relatives in academic writing
Academic prose often uses what-clauses to turn an entire proposition into a topic.
- What the data shows is a gradual decline.
- What matters is the difference between correlation and causation.
- The analysis depends on what counts as an independent observation.
These structures are useful because they let the writer package a complex criterion or finding as one noun-like unit.
But repeated what matters is… structures can become formulaic. Use them when the information architecture genuinely benefits from specification or contrast.
Free relatives in narrative
Narrative uses free relatives to preserve uncertainty.
She could not see what was moving behind the curtain. The entity remains unidentified while its relation to the event is clear.
Whoever had entered the room had left the window open. The actor’s identity is unknown, but the clause still defines the relevant person through an action.
This makes free relatives useful for mystery, suspense and delayed identification.
Free relatives and rhetorical framing
A free relative can hide a category choice inside the clause.
We must accept what the experts recommend. The sentence leaves the recommendation unspecified while presenting “expert recommendation” as the selection rule.
Whoever disagrees should explain why. The free relative defines a group by behaviour rather than by name.
Critical readers should ask what property the clause uses to create the group and whether that property is fair, complete and relevant.
Agreement with free relatives
Agreement depends on how the free relative is construed.
What we need is more time. The what-clause is often treated as a singular conceptual unit. In other contexts, a plural predicative complement or plural interpretation can create variation.
Whoever arrives first wins. The clause selects one person under the normal scenario. Whoever are selected… is generally avoided; writers can use those who are selected when a clearly plural set is intended.
The practical lesson is to identify the semantic number of the selected referent rather than relying only on surface morphology.
Free relatives and preposition placement
Prepositions can appear outside or inside related wh-structures depending on the construction.
Talk to whoever is responsible. The preposition selects the whole free relative. In more complex interrogative or relative constructions, preposition placement can vary according to register.
The important structural question is whether the preposition belongs to the larger clause or fills a role inside the subordinate clause.
Common learner errors
- Adding an external head noun before what: the thing what I need in formal standard English.
- Confusing a free relative with an embedded question merely because both begin with a wh-word.
- Using who when an unrestricted free-choice meaning requires whoever.
- Forcing whomever by looking at the larger sentence rather than the wh-form’s role inside its own clause.
- Assuming every -ever clause is noun-like when some are concessive or adverbial.
- Using a vague free relative where a direct noun would be clearer.
A compact diagnostic table
| Construction | Rough paraphrase | Typical role |
|---|---|---|
| what you need | the thing(s) that you need | subject/object/complement |
| whoever arrives | the/any person who arrives | person-selecting nominal unit |
| whatever you choose | anything that you choose | free-choice nominal unit |
| whichever route works | the route, from the relevant set, that works | selection from alternatives |
| what did she choose? | question | interrogative, not free relative |
A practical method for students
- Find the wh-expression. What, whoever, whatever, whichever, where?
- Look for an external head noun. If one exists, the structure may be an ordinary relative rather than a free relative.
- Test noun-like function. Can the whole clause act as subject, object or prepositional complement?
- Try the paraphrase. Does “the thing/person that…” preserve the intended meaning?
- Test the question reading. Is the clause naming an entity or expressing an unknown answer?
- Check quantificational force. Specific referent, any qualifying referent or choice from a set?
Why free relatives belong inside How English Works
Free relatives show that English can turn a clause into a referential unit without first naming the category of thing being referred to.
What you need lets the relation “you need x” identify x. Whoever arrives first lets the condition “x arrives first” identify the relevant person. Whichever route works lets a property select a member from a set.
The construction therefore fuses description and reference. Instead of naming a thing and then modifying it, English can let the clause itself tell us what counts as the thing.
Teaching Guide
Teach free relatives by contrasting three structures built from the same semantic material: What did Maya buy?, the book that Maya bought, and what Maya bought. Ask students which is a question, which has an external head noun, and which functions as a noun-like clause by itself.
Next, use paraphrase tests: what you need → the thing that you need; whoever arrives first → the person who arrives first. Then introduce -ever forms as selection rules over unknown or unrestricted values.
Finish with ambiguous what-clauses after verbs such as know, discover, remember and ask. Students should justify whether each clause refers to an entity or expresses an embedded question. Mastery means recognising the clause’s role in the larger sentence, not merely spotting a wh-word.
Continue through the English system: How English Works · English Learning Hub · Relative Clauses · Clause Embedding · Clefting and Focus Packaging