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Essential English Grammar for IELTS Band 7+
IELTS does not test grammar explicitly, but grammatical accuracy is 25% of your Writing band and affects Speaking fluency. Here are the structures that matter most.
Why grammar matters for IELTS
Examiners score 'Grammatical Range & Accuracy' as a criterion. Band 7+ writers use a mix of simple, compound and complex sentences with few errors. Perfect grammar is not required, but errors must not distract the reader.
Conditional sentences (critical for essays)
Zero conditional (fact): If + present tense, present tense. 'If you heat water to 100°C, it boils.' First conditional (possible future): If + present, will + base. 'If you study hard, you will pass.' Second conditional (unlikely/imaginary): If + past tense, would + base. 'If I won the lottery, I would travel.' Third conditional (impossible past): If + had + past participle, would have + past participle. 'If I had studied more, I would have scored higher.' Essays often use conditionals in arguments; master all four.
Passive voice (for objective writing)
Form: be + past participle. Active: 'Scientists discovered a cure.' Passive: 'A cure was discovered.' Passive suits academic and formal writing — use it to shift focus from the actor to the action. But do not overuse; vary active and passive.
Relative clauses (for detail and sophistication)
Defining: 'The student who studied hard passed.' Non-defining: 'John, who studied hard, passed.' Non-defining clauses add information in commas. Reduced relative clauses drop the relative pronoun: 'The book (that was) published last year is bestselling.' These structures show complexity and sophistication.
Present Perfect vs Past Simple
Past Simple: finished action at a specific time. 'I completed my degree in 2023.' Present Perfect: action that happened at an unspecified time or continues to now. 'I have studied English for 5 years.' IELTS rewards accurate use of these — common errors lose points.
Common errors to avoid
Subject-verb agreement: 'The data are clear' (not 'is'). Articles: 'I want to study in Canada' (not 'the Canada'). Prepositions: 'interested in' (not 'on'), 'apply for' (not 'apply to'). Fragments: 'Although I failed once. I eventually passed' is a fragment — combine to 'Although I failed once, I eventually passed.' These errors are caught quickly by examiners and lower your band.
Frequently asked questions
- Do I need to use complex grammar for Band 7+?
- You need a mix of simple and complex sentences. Complex grammar with errors is worse than simple, accurate sentences. Accuracy matters more than complexity.
- How many grammar errors am I allowed for Band 7?
- Band 7 allows occasional errors that do not impede meaning. Band 8 requires rare errors. A general rule: fewer than 5 errors per 250-word essay.
- Is there a grammar section on IELTS?
- No — there is no explicit grammar test. Grammar is assessed as part of Writing and Speaking through the criteria of Grammatical Range & Accuracy.