48 Drills, 4 Challenges: The Grammar Workbook That Feeds Your Letters

Problem: letter feedback says “grammar” but never which grammar — so candidates revise everything and fix nothing. Answer in brief: drill the exact grammar letters need (48 drills), then prove it in paragraph challenges. Below: drill design, challenge method, demonstrations, eight tasks and FAQs — grounded in OET Writing Grammar Workbook by Jobin Thomas.

Learning outcomes

By the end you will be able to: drill letter-critical grammar in short sets; transfer drill accuracy into paragraphs; and use answer explanations as teaching. Design follows the source book.

How the 48 drills work

Write answers before consulting keys; some prompts allow several accurate versions — the key shows a suitable response and explains meaning. Drill families: time and tense (status fidelity — “has undergone” vs “underwent”), certainty language, responsibility attribution, and meaning-preserving rewrites. The governing rule: a sentence can be grammatical yet inaccurate about the case — preserve time, status, responsibility and certainty in every rewrite.

The 4 paragraph challenges

Paragraphs combine drilled points under realistic load: multi-error paragraphs requiring tense repair, certainty calibration and fidelity checks together. Challenges sit after drill blocks so skills arrive assembled. Complete answer key follows all four challenges — attempt fully before consulting.

Using explained answers

Keys explain meaning, not just correctness: why this tense preserves status, why that rewrite changes responsibility. Study explanations for reasoning patterns; log recurring miss-types (tense vs certainty vs fidelity) to direct the next drill set.

Demonstrations (newly written)

Labelling: both demonstrations are newly written.

Drill transfer (newly written)

Drill: “Today is 12 June. Correct: She has undergone surgery on 4 June.” → “She underwent surgery on 4 June.” (finished date forces past.) Transfer: letter line “He was admitted on 3 May and has since improved” — same rule, letter context.

Challenge paragraph (newly written)

Faulty: “He is admitted last week and his condition is improved and the doctors are discharged him yesterday.” Repaired: “He was admitted last week; his condition has since improved, and he was discharged yesterday.” (Tense sequence, conjunction discipline, passive formation — three drills, one paragraph.)

Drill-to-letter transfer week (newly written)

Labelling: the illustration below is newly written. Monday drills: twenty tense-sequence items (finished-date → past simple) with keys studied for reasoning. Wednesday challenge: multi-error paragraph combining tense, certainty and articles — miss-types logged (certainty weakest). Friday letter: full discharge letter written with deliberate certainty calibration (“remains under review” not “recovered”), then proofread tense-first. Transfer proven when Friday’s letter shows Monday’s rule without conscious effort — the drill-to-letter arc complete.

Full worked letter paragraph with commentary (newly written)

Labelling: the paragraph below is newly written (fictional case). Challenge: compress a three-day post-operative course into one accurate paragraph. Performance: “Following an uncomplicated laparoscopic cholecystectomy on 12 May, Mrs Rao remained afebrile with steadily declining pain scores. Although mild nausea persisted into day one, it resolved with antiemetics, and she tolerated a light diet by the evening. Having mobilised independently by day two, she was discharged on day three with wound-care instructions and a clinic review in two weeks.” Commentary: subordinator opens, concession links the complication, participle compresses mobilisation — five drill moves in four sentences, every verb tense-true.

Practice bank: 8 tasks with answers

Task 1. Short drill set: ten tense items, answers first. Answer guidance: key consulted after, explanations studied.

Task 2. Certainty calibration: three hedged rewrites. Answer: honest precision each.

Task 3. Responsibility check: active vs passive choice ×5. Answer guidance: ownership decides voice.

Task 4. Fidelity rewrite preserving time/status. Answer: meaning identical, grammar improved.

Task 5. Paragraph challenge attempt, fully. Answer: key after, miss-types logged.

Task 6. Transfer drill: use three drill patterns in one letter paragraph. Answer: self-checked.

Task 7. Miss-type tally across a week. Answer: next sets target the top type.

Task 8. Full letter with drill-check pass. Answer: tense/certainty/fidelity verified.

Common errors and corrections

Key-peeking. Answers before attempts — write first always. Correct-but-inaccurate. Grammar fixed, meaning changed — fidelity rules. Drill isolation. Drills never transferred — paragraph challenges bridge. Miss-type blindness. Random re-drilling — tally directs sets. Challenge-skipping. Drills only — challenges prove assembly.

Study sequence with the book

Weeks 1–2: 48 drills in short dated sets with keys studied. Week 3: 4 paragraph challenges with miss-type logging. Week 4: transfer into full letters; weakest-type sets repeated.

FAQs

Drills or letters first? Alternate — drills build parts, letters assemble them. Several accurate versions? Normal — keys show suitable responses with reasoning. What matters more, grammar or fidelity? Both — grammatical inaccuracy about the case fails twice. How do challenges differ from letters? Concentrated multi-error load training proofreading under pressure. When are drills “done”? When transfer holds in timed letters, not when keys score 100%.

The matching book

OET Writing Grammar Workbook: 48 Drills, 4 Paragraph Challenges, Explained Answers by Jobin Thomas (Jobins Training, September 2026) provides the drill bank with keys. Use this article for drill method; use the book for the repetitions.

Continue your practice with OET Writing Grammar Workbook: 48 Drills, 4 Paragraph Challenges, Explained Answers

Want more practice? This article introduces the key principles, but OET Writing Grammar Workbook: 48 Drills, 4 Paragraph Challenges, Explained Answers provides additional practice, worked examples and structured preparation. View the book →

Sources and editorial note

Drill design and key philosophy verified against full PDF text extraction (~27,000 characters); usage sections read. Drills newly written and labelled; no lengthy verbatim reproduction. Independent preparation, not affiliated with or endorsed by OET. British English throughout.