A list can contain three sensible ideas and still feel unstable when each arrives in a different grammatical shape. Parallel structure shows that ideas have equal status by giving them matching forms. The Slot Check helps a G2 English learner find the shared sentence job, align its items and preserve the original meaning.
Use it now. Underline the stem before the list, comparison or paired construction. Read the stem with each item separately. Label the slot as noun phrase, adjective, base verb, -ing form, infinitive, prepositional phrase or clause. Rewrite the mismatching item into the form that fits the meaning and grammar of the whole set.
The 2027 G2 English Language K200 syllabus assesses writing that suits purpose, audience and context with accurate and appropriate vocabulary, grammar, punctuation and spelling. This guide teaches one grammar-and-clarity routine; it does not predict a compulsory error type or prescribe a template for every sentence.
Official source route: SEAB 2027 G2 syllabus directory; applicable 2027 official syllabus; MOE SEC transition context. Recheck these documents for a later examination year.
Choose your route
Route 1 — Understand: Chapters 1–4 establish the governing distinction.
Route 2 — Execute: Chapters 5–9 build a repeatable method.
Route 3 — Diagnose: Chapters 10–13 expose nearby traps and add variation.
Route 4 — Transfer: Chapters 14–15 support adults and independent use.
Chapter contents
1. Find the shared grammatical job
7. Align clauses when subjects differ
12. Preserve meaning during repair
13. Edit the smallest unstable span
14. Parents and tutors should ask the slot question
15. Transfer into real paragraphs
Series and learning links
Continue with eduKateSG English Learning Hub, the canonical owner English parallelism owner guide, and Vol 0309 Past-Perfect Sequence Gate. This guide adds a narrow diagnostic and practice job rather than duplicating the owner.
For broader habits, use Examination Craft, the earlier PSLE Learner’s Guide series and the immutable eduKateSG small-group tutorial reference.
Also use Mixed-grammar list repair owner guide for the complementary canonical explanation.
Earlier live guides in this batch: Vol 0312 Converse-Reversal Gate.
1. Find the shared grammatical job
Mechanism. Find the shared grammatical job. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. In “plan, draft and revise”, all three words complete “students should…”. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. Words are aligned merely because they are all about writing. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Ask the same grammar question of every item. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
2. Use the stem test
Mechanism. Use the stem test. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. “The course teaches students to read, compare and explain” lets the shared to govern three base verbs. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. The second item becomes comparing while the others stay base verbs. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Read the stem aloud before each item. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
3. Align -ing forms
Mechanism. Align -ing forms. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. “She enjoys reading, swimming and cycling” uses three -ing complements. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. Reading, to swim and cycling are mixed. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Choose one form licensed by the controlling verb. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
4. Align infinitives
Mechanism. Align infinitives. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. “The aim is to diagnose, to repair and to test” deliberately repeats three infinitives. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. Only one item loses the infinitive marker in a way that changes scope. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Keep repeated or shared to consistent and clear. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
5. Align noun phrases
Mechanism. Align noun phrases. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. “Bring a notebook, a charged device and your identification card” gives three objects. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. One bullet changes into “to charge your device”. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Decide whether the list names things or commands actions. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
6. Align adjectives
Mechanism. Align adjectives. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. “The route is shorter, safer and quieter” gives three qualities. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. The final item becomes “with less noise”. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Convert equal descriptions into matching adjective slots. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
7. Align clauses when subjects differ
Mechanism. Align clauses when subjects differ. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. “The report states that costs fell and that access improved” makes both clause boundaries clear. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. A noun phrase is paired with a full clause. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Match the level of the compared claims. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
8. Control both–and
Mechanism. Control both–and. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. “Both reading closely and checking evidence” puts -ing forms after each half. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. Both is placed before a verb while and introduces a noun. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Bracket the two units joined by the pair. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
9. Control either–or
Mechanism. Control either–or. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. “Either revise the paragraph or rewrite the conclusion” joins two base-verb phrases. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. One alternative is an action and the other a thing. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Make the alternatives answer the same question. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
10. Control not only–but also
Mechanism. Control not only–but also. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. “The change not only reduced delay but also improved access” aligns two past-tense verb phrases. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. Not only frames the subject while but also frames the predicate. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Place the pair immediately before equivalent units. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
11. Compare like with like
Mechanism. Compare like with like. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. “Using the new form is easier than completing the old form” compares two actions. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. A system is compared with completing a form. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Identify whether the sentence compares objects, actions or qualities. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
12. Preserve meaning during repair
Mechanism. Preserve meaning during repair. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. If the writer meant three outcomes, the edit keeps all three outcomes rather than deleting the awkward one. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. Parallelism is achieved by removing a difficult idea. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Align the form without weakening the content. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
13. Edit the smallest unstable span
Mechanism. Edit the smallest unstable span. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. Replace “to cycle” with “cycling” when it is the only mismatch after enjoys. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. The whole sentence is rewritten and new tense errors appear. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Repair the slot, then reread agreement, tense and meaning. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
14. Parents and tutors should ask the slot question
Mechanism. Parents and tutors should ask the slot question. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. Ask “what job do these three items share?” before discussing form. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. Adults say it sounds awkward and supply a polished version. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Require the learner to name both the shared job and matching shape. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
15. Transfer into real paragraphs
Mechanism. Transfer into real paragraphs. Make the controlling decision visible before compressing it into a fast routine. A visible decision can be inspected and corrected; an unspoken habit can produce a plausible response for the wrong reason.
Original worked example. Lists, comparisons, paired conjunctions and bullet points are mixed inside purposeful writing. The wording and values are created for teaching, not copied from an examination. Identify the cue, apply the relationship and state the conclusion at the precision the evidence supports.
Misconception diagnosis. Practice remains a set of isolated three-word lists. Treat this as evidence about the first failed decision, not as a verdict on the learner. Mark that earliest unstable step so correct later work does not need to be rebuilt unnecessarily.
Repair. Use the slot check during drafting and a later editing pass. Close the model and reproduce the decision from memory. Change one surface feature, then explain what remained invariant and why the method still fits.
Practice progression. Start untimed with the decision labelled. Remove the label, vary numbers or wording, add a strong near-neighbour distractor and finish with a short realistic time boundary. Record whether the learner chose the move independently.
Explained answer check. A secure answer preserves the governing relationship, relevant evidence, units or language strength, and the exact task demand. Compare assumptions with the prompt instead of choosing the most familiar method.
Transfer. Give a fresh item after a delay without naming this chapter. Success means the learner detects the same structure, completes the task and can justify the choice. If transfer fails, return to the earliest decision rather than adding identical repetition.
A seven-day practice plan
Day 1: learn the distinction and complete two guided examples.
Day 2: diagnose three deliberately flawed responses.
Day 3: practise a varied set without chapter labels.
Day 4: explain one answer aloud and shorten the explanation without losing its reason.
Day 5: use a timed mini-set and record the first failed decision.
Day 6: repair that decision, then attempt a changed transfer item.
Day 7: complete a delayed mixed check and write one next-step target.
Final learner checklist
□ I can state the exact task before I start.
□ I can identify the decision that controls the later steps.
□ I can show enough working or notes to make that decision visible.
□ I can diagnose the first wrong step instead of only comparing final answers.
□ I can complete a changed example without copying the model.
□ I follow current paper and school instructions rather than treating this guide as an examiner rule.