IELTS Writing · Ch 21

Complex Grammar for Band 7+

Conditionals · inversion · relative clauses · cleft sentences

Topic & Why It Matters

Grammatical Range and Accuracy is one of the four IELTS Writing criteria. To reach Band 7 or above, you need to show that you can use a variety of sentence forms accurately, not only basic subject-verb-object sentences. This includes clauses that express cause, condition, contrast, emphasis, and specification.

Candidates lose marks when they confuse complex grammar with long grammar. A sentence can be long but weak if the logic is unclear. The goal is controlled variety: grammar that helps the examiner see exactly how your ideas connect.

Knowledge Points

Complex grammar means controlled variety
Band 7+ grammar is not about writing the longest sentence possible. It means using a range of accurate structures, including subordination, conditionals, relative clauses, and passive forms, while keeping meaning clear.
Accuracy is worth more than decoration
One accurate conditional or relative clause is better than several ambitious sentences with agreement, punctuation, or word-order errors. Complex grammar should clarify relationships between ideas.
Use complex structures where logic needs them
Conditionals explain consequences, concession clauses show limits, relative clauses specify people or things, and cleft sentences emphasise the real focus. Match the structure to the purpose.
Sentence length must still be controlled
A strong paragraph usually mixes short, medium, and longer sentences. If every sentence has three clauses, the essay becomes harder to follow and Coherence may suffer.
Punctuation is part of grammar control
Non-defining relative clauses need commas; defining clauses usually do not. Introductory clauses such as 'Although...' or 'If...' normally need a comma before the main clause.
Task 1 and Task 2 use different grammar patterns
Task 1 often relies on passive voice, comparison, and participle clauses. Task 2 relies more on conditionals, concessive clauses, relative clauses, and emphasis structures.

Structure Template

Add complex grammar at planned points in the essay. Do not try to make every sentence advanced.

Essay StageGrammar TargetWhat to Do
IntroductionConcession + thesisUse one controlled complex sentence to frame the debate: 'Although X is important, I believe Y because...'. Do not overload the first paragraph with multiple advanced patterns.
Body paragraph 1Conditional or relative clauseUse a conditional to explain consequences or a relative clause to define the affected group. Keep the topic sentence direct before adding complex support.
Body paragraph 2Contrast + emphasisUse 'whereas', 'while', 'what matters is...', or 'only when...' to show a sharper relationship between ideas. This is useful when balancing two sides.
ConclusionQualified final judgementRestate your position with a condition or limitation: 'provided that...', 'as long as...', or 'without replacing...'. Avoid adding a brand-new argument.
Grammar rule: Use complex grammar to make relationships clearer: condition, contrast, emphasis, result, definition, or concession. If the sentence becomes harder to understand, simplify it.

Three-Question Grammar Audit

QuestionAction
Does the structure serve a clear purpose?Name its job: condition, contrast, emphasis, definition, result, or concession.
Can the sentence be understood on first reading?If not, split it into two sentences or remove one subordinate clause.
Is the grammar mechanically correct?Check verb tense, subject-verb agreement, word order after inversion, and comma use around relative clauses.

Vocabulary & Grammar Toolkit

StructureUsage Note
Although [clause], [main clause]Concession: useful for balanced introductions and limitations
While / whereas [clause], [clause]Contrast two groups, effects, or opinions in one controlled sentence
If [present], [can/may/will + verb]Realistic future or general consequence
If [past], [would/could + verb]Hypothetical situation; do not mix with 'will'
Provided that / as long as [clause]Adds a condition to a recommendation or opinion
Unless [clause], [main clause]Means 'if not'; useful for warnings and limitations
Even if [clause], [main clause]Shows that one condition does not change the main judgement
[noun] who / which / that [verb]Defining relative clause; identifies the person or thing
[noun], which [verb], [main clause]Non-defining relative clause; add commas around extra information
[noun] whose [noun] [verb]Shows possession or relationship: 'students whose parents cannot pay fees'
in which / through which / by whichMore precise than repeating 'where' for systems, methods, or processes
Having [past participle], [subject] [verb]Shows an earlier completed action; use only when the subject is the same
[main clause], [verb-ing]...Adds a result: 'fares rise, making travel less affordable'
Not only [auxiliary] [subject] [verb], but [subject] also [verb]Emphatic addition; word order changes after 'not only'
What matters is [noun phrase / clause]Cleft sentence that highlights the key issue
It is [noun phrase] that [clause]Cleft sentence for emphasis; avoid using it in every paragraph
Only when [clause] can [subject] [verb]Inversion after a fronted limiting phrase
Rarely / seldom do [subject] [verb]Formal inversion; use sparingly because it can sound unnatural if forced
Were [subject] to [verb], [subject] would [verb]Advanced hypothetical conditional; useful but optional
Without [noun/gerund], [clause]Concise condition: 'Without reliable funding, the policy may fail'
Rather than [verb-ing], [subject] should [verb]Clear contrast between a weak and stronger action
This is because / This means thatSimple grammar is still useful when explanation needs clarity

Common Pitfalls

MistakeCorrection
Writing long sentences with unclear logicBreak the sentence or use one clear linker. Weak: 'People need jobs which cities are expensive and the government should help.' Strong: 'People need access to jobs, which is difficult when city transport is expensive.'
Mixing conditional formsDo not write 'If governments would invest, citizens will benefit.' Use 'If governments invest, citizens will benefit' or 'If governments invested, citizens would benefit.'
Using inversion without changing word orderAfter 'Only when...', invert the auxiliary and subject: 'Only when schools remove stereotypes can students choose freely.'
Adding commas to every relative clauseDefining clause: 'students who live far away need transport.' Non-defining clause: 'Public transport, which is often subsidised, can improve access.'
Forcing rare grammar into every paragraphA band-7 essay does not need inversion in every answer. Use complex grammar where it improves explanation, contrast, or emphasis.

Practice Prompt

Set a 40-minute timer. Before writing, choose three grammar targets: one concession, one conditional or relative clause, and one emphasis structure.

You should spend about 40 minutes on this task.

Universities should accept equal numbers of male and female students in every subject.

To what extent do you agree or disagree?

Write at least 250 words.

Examiner warning: Do not insert inversion or cleft sentences just to sound advanced. Use them only when they make your argument sharper or more controlled.
My Response
0 / 250 words
250 more words needed

Model AnswerBand 7.5+ · 264 words

Many universities are under pressure to make admissions fairer, and one proposal is to require the same number of male and female students in every subject. Although equal access is essential, I do not believe that fixed gender quotas should be applied to each course, because they can restrict individual choice and ignore differences in applicants' interests.

The strongest argument against a strict rule is that admissions should mainly reflect academic readiness. If a department receives far more qualified applicants from one gender in a particular year, forcing an exact balance may lead it to reject stronger candidates. This would be unfair to students who have met the entry requirements, and it could also weaken courses whose standards depend on specialist preparation. Universities should remove barriers that discourage certain groups from applying, but selection itself should remain based on merit.

That said, gender imbalance should not be dismissed as a private preference. In fields where one group has been historically under-represented, such as engineering or nursing, schools can provide outreach, scholarships, mentoring, and clearer career information. What matters is not a mechanical fifty-fifty outcome, but a fair application process in which students are not pushed away by stereotypes. Only when universities address these earlier influences can applicants make genuinely free choices.

Therefore, I disagree with making equal numbers compulsory in every subject. A better policy would monitor participation, challenge biased expectations, and support under-represented applicants before admission decisions are made. Such measures promote equality without replacing academic judgement with a quota that may solve the appearance of unfairness while creating new forms of it.

Annotated Commentary

Each paragraph is quoted, then broken down by examiner criteria. Notice how the grammar is varied, but the argument remains direct.

[ Concession + thesis ]Paragraph 1 - Introduction
Many universities are under pressure to make admissions fairer, and one proposal is to require the same number of male and female students in every subject. Although equal access is essential, I do not believe that fixed gender quotas should be applied to each course, because they can restrict individual choice and ignore differences in applicants' interests.
Paraphrase'require the same number of male and female students' restates the quota idea clearly
Thesis'I do not believe...' gives a direct position without sounding extreme
Cohesive device'Although' introduces a concession before the writer's disagreement
Complex grammarThe final sentence combines concession, thesis, and reason in one controlled structure
Lexical upgrade'fixed gender quotas', 'individual choice', and 'applicants' interests' are precise topic terms
[ Topic sentence ]Paragraph 2 - Merit-based admissions
The strongest argument against a strict rule is that admissions should mainly reflect academic readiness. If a department receives far more qualified applicants from one gender in a particular year, forcing an exact balance may lead it to reject stronger candidates. This would be unfair to students who have met the entry requirements, and it could also weaken courses whose standards depend on specialist preparation. Universities should remove barriers that discourage certain groups from applying, but selection itself should remain based on merit.
Topic sentence'admissions should mainly reflect academic readiness' controls the paragraph
Cohesive device'This would be unfair' links the consequence back to the previous conditional sentence
Complex grammar'If a department receives...' uses a real conditional to explain the risk
Complex grammar'students who have met...' and 'courses whose standards...' use relative clauses for precision
Lexical upgrade'entry requirements', 'specialist preparation', and 'based on merit' fit the education topic
[ Emphasis ]Paragraph 3 - Fair process
That said, gender imbalance should not be dismissed as a private preference. In fields where one group has been historically under-represented, such as engineering or nursing, schools can provide outreach, scholarships, mentoring, and clearer career information. What matters is not a mechanical fifty-fifty outcome, but a fair application process in which students are not pushed away by stereotypes. Only when universities address these earlier influences can applicants make genuinely free choices.
Topic sentence'gender imbalance should not be dismissed' creates a balanced second body paragraph
Cohesive device'That said' signals a qualification without reversing the thesis
Complex grammar'What matters is not..., but...' is a cleft sentence that emphasises the real criterion
Complex grammar'Only when universities address...' uses inversion to stress the condition for free choice
Lexical upgrade'under-represented', 'outreach', 'stereotypes', and 'application process' build a focused lexical chain
[ Qualified judgement ]Paragraph 4 - Conclusion
Therefore, I disagree with making equal numbers compulsory in every subject. A better policy would monitor participation, challenge biased expectations, and support under-represented applicants before admission decisions are made. Such measures promote equality without replacing academic judgement with a quota that may solve the appearance of unfairness while creating new forms of it.
Thesis restated'I disagree with making equal numbers compulsory' restates the position directly
Cohesive device'Therefore' marks the final judgement
Complex grammar'before admission decisions are made' uses passive voice to keep focus on the policy process
Complex grammar'without replacing...' adds a concise condition/limitation to the final claim
Lexical upgrade'monitor participation', 'biased expectations', and 'academic judgement' are precise and controlled

Self-Check

Answer these from memory before looking back. If you cannot answer all, re-read the relevant section.

  1. Why is one accurate complex sentence usually better than three forced advanced structures?
  2. Correct the conditional: 'If universities would use quotas, stronger students will lose places.'
  3. Write one sentence about education using 'Only when...' with correct inversion.
Answers: (1) Complex grammar is rewarded only when it is accurate and useful; forced structures create errors and reduce clarity. (2) Correct: 'If universities used quotas, stronger students would lose places' or 'If universities use quotas, stronger students may lose places.' (3) Sample: 'Only when schools challenge stereotypes can students choose subjects freely.'