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A strong command of grammar is one of the most important factors in achieving a high IELTS score, especially in Writing and Speaking. Grammar accounts for 25% of your band score in both modules, under the criterion “Grammatical Range and Accuracy.” This means examiners look at not only how accurate your sentences are but also how wide a range of grammar structures you can use.
This guide will walk you through the grammar essentials you must master for IELTS Writing and Speaking, along with examples and tips on how to practice effectively.
In both Writing and Speaking, grammar helps examiners measure two things:
Accuracy – Are your sentences free from errors in tense, subject–verb agreement, word order, articles, and prepositions?
Range – Do you show flexibility by using complex sentences, conditional forms, passive voice, and varied tenses instead of repeating the same simple structures?
For example:
Band 5.5 sentence: People use internet every day. (errors in article use and missing the definite article “the”)
Band 7.5 sentence: People use the internet every day, and it has significantly changed the way we communicate. (correct article use + complex sentence)
IELTS examiners expect you to move beyond basic sentences.
Simple sentence: I like reading books.
Compound sentence: I like reading books, and I often borrow them from the library.
Complex sentence: I like reading books because they help me relax after work.
Tip: In Writing Task 2, aim for a balance—around 40% simple, 30% compound, and 30% complex sentences. Overusing complex structures may lead to errors.
Tenses are a common area where candidates lose marks. You need to be comfortable using different tenses depending on the context.
Present Simple: Many people commute to work every day. (general facts)
Present Continuous: More people are working from home nowadays. (current trend)
Past Simple: The factory closed in 2018 due to economic problems. (completed past action)
Present Perfect: Technology has changed the way we interact with others. (effect continuing now)
Future (will/going to): The government will introduce new laws next year.
Speaking Tip: Use the right tense in Part 2 (long turn). For example, when describing a past experience, keep your verbs in the past simple consistently.
Articles (a, an, the) cause problems for many candidates, especially those from Asian language backgrounds.
Use a/an for singular, non-specific nouns: I bought a book.
Use the for specific or previously mentioned nouns: The book I bought is interesting.
No article with plural or uncountable nouns used generally: Books are expensive these days.
Writing Tip: In Task 1 Academic, when describing graphs, be careful: The percentage of students increased (no article), not The percentage of the students increased unless you mean a specific group.
Always match the subject and verb in number.
Correct: The number of students has increased.
Incorrect: The number of students have increased.
Rule of thumb: The number of = singular verb / A number of = plural verb.
The passive voice is very useful in IELTS Writing Task 1 when describing processes or trends.
Active: The company built a new factory last year.
Passive: A new factory was built last year (by the company).
Task 1 Example:
The raw materials are transported to the factory, where they are processed into finished goods.
Conditionals show hypothetical or future situations and add variety to your writing and speaking.
Zero Conditional (general truths): If water reaches 100°C, it boils.
First Conditional (future possibility): If the government invests more, unemployment will decrease.
Second Conditional (unreal present/future): If I had more free time, I would learn another language.
Third Conditional (unreal past): If I had studied harder, I would have passed the test.
Speaking Part 3 Tip: Conditionals are excellent for speculation. For example: If more people worked remotely, cities would have less traffic congestion.
Relative clauses help you combine ideas and avoid short, repetitive sentences.
The teacher who taught me English was very supportive.
I visited Paris, which is famous for its culture and architecture.
Using “who, which, where, that” naturally shows grammatical range.
Modal verbs (can, could, may, might, should, must, would) are crucial for showing possibility, necessity, and advice.
Governments should invest in renewable energy.
This solution might reduce pollution levels.
Academic Writing Tip: Hedging (softening your claims) is valued. Instead of writing This solution will solve the problem, write This solution may help solve the problem.
Missing “s” on plural nouns (Many student ❌ → Many students ✔)
Wrong prepositions (discuss about ❌ → discuss ✔)
Run-on sentences (People like social media it is very popular ❌ → People like social media because it is very popular ✔)
Overusing linking words (Firstly… Secondly… Thirdly… in every sentence sounds mechanical)
Use the passive voice for describing processes.
Be consistent with tenses (usually past simple or present simple).
Use comparative structures: The figure was higher than… / There was a greater increase in…
Use a variety of complex structures, but avoid errors.
Include conditionals and relative clauses where relevant.
Use modals for balanced arguments: Governments should… Individuals must… This could…
In the Speaking test, grammar matters as much as fluency and pronunciation.
Part 1: Keep answers natural with correct tense use. I usually watch movies on weekends.
Part 2: Show control of narrative tenses. Last year, I traveled to Japan, where I visited Kyoto.
Part 3: Demonstrate complex structures and speculation. If governments invested more in healthcare, people’s quality of life would improve.
Tip: Don’t aim for 100% grammatical perfection. Examiners expect occasional slips, but consistent accuracy and variety will push you into Band 7 and above.
Targeted Practice: Work on one grammar point at a time. For example, spend a week focusing only on articles or conditionals.
Sentence Transformation: Take simple sentences and rewrite them in compound and complex forms.
Model Answers Analysis: Study high-scoring IELTS essays and highlight different grammar structures.
Recording Speaking Practice: Record yourself answering IELTS Speaking questions. Check for consistent tense use and grammar range.
Error Log: Keep a notebook of your common mistakes. Review it regularly to avoid repeating them.
Band 5.0–5.5: Frequent grammar errors, limited sentence types.
Band 6.0: Mix of simple and complex sentences, but with noticeable mistakes.
Band 7.0: Variety of structures with occasional errors.
Band 8.0–9.0: Wide range of grammar used naturally and accurately, only rare slips.
Grammar is not about showing off with overly complicated sentences—it’s about accuracy and variety. To score Band 7 or higher in IELTS Writing and Speaking, you need to:
Use a range of tenses correctly.
Balance simple, compound, and complex sentences.
Master articles, subject–verb agreement, and conditionals.
Apply passive voice, relative clauses, and modals naturally.
With consistent practice and awareness of common mistakes, you can significantly boost your IELTS grammar score and move closer to your target band.
Grammar contributes 25% of your score in both Writing and Speaking under “Grammatical Range and Accuracy.” Examiners evaluate two things: how accurately you use grammar (few errors, correct forms) and how wide a range of structures you can produce (simple, compound, complex; active and passive; modals; conditionals). To reach Band 7 or higher, you must show variety while keeping errors rare and non-impeding.
Range means demonstrating different sentence types and forms in a natural way. Use complex sentences when needed, but also vary with simple and compound forms. Accuracy means correct tenses, subject–verb agreement, articles, prepositions, and punctuation. A candidate with modest range but strong accuracy can reach Band 6, while a candidate with broad range and mostly accurate control can reach Band 7–8.
No. Overloading your response with complex sentences increases the risk of mistakes and reduces clarity. A healthy balance often works best: many high-scoring scripts mix about 40% simple, 30% compound, and 30% complex sentences. The goal is purposeful variety, not constant complexity.
For static descriptions (e.g., a current process), present simple and passive forms are common. For trends over time, use past simple for completed periods (e.g., “From 2000 to 2015, sales increased.”). When describing general truths or recurring steps in a process, present simple passive is effective (e.g., “The materials are sorted, then they are heated.”). Be consistent: avoid switching tenses without a time reason.
Match tenses to the time frame. For past stories, keep verbs in past simple and add past continuous or past perfect when needed for sequencing. For general habits or preferences, use present simple. For speculation about the future in Part 3, use “will,” “might,” “could,” and mixed conditionals appropriately. Consistency is more important than showing every tense you know.
Use passive voice in Task 1 to describe processes and when the doer is unknown or unimportant: “The waste is collected and then is processed.” In essays (Task 2), prefer active voice for clarity and energy, but passive is useful to keep a formal tone or when emphasizing results over agents: “Regulations were introduced to curb emissions.”
Conditionals show flexible reasoning, especially in Speaking Part 3 and Writing Task 2. Use:
Accurate conditional forms signal good control and help achieve higher bands.
Hedging softens absolute claims and is valued in academic writing. Instead of “This policy will solve the problem,” write “This policy may help address the problem.” Use modals (may, might, could), cautious verbs (suggest, indicate), and phrases (to some extent, in many cases) to present balanced arguments. This improves the formality and credibility of your Task 2 essay.
Run-ons occur when independent clauses are joined incorrectly. Fix them by using a period, a semicolon, or a coordinating conjunction with a comma. For example: “Social media is popular, and it influences how people communicate.” If in doubt, split into two sentences to protect accuracy.
Use linking words to guide readers (however, therefore, moreover, as a result), but avoid mechanical repetition. Cohesion comes from clear logic, reference words (this, these, such), and consistent paragraphing. Overusing “Firstly, Secondly, Thirdly” can sound formulaic; mix linking phrases naturally.
Adopt a “layered practice” routine. First, write a paragraph in simple sentences. Second, combine ideas using coordination (and, but, so) and subordination (because, although, while). Third, add one or two advanced features (a relative clause, a conditional, a passive). Review accuracy at each layer so complexity never outruns control.
Occasional slips are acceptable if they do not distort meaning and if control is evident in more complex structures. Aim for high accuracy in simple forms and careful control in advanced ones. If an advanced form still causes frequent errors, use a slightly simpler alternative to protect your score.
Relative clauses help you combine related ideas: “The program, which was launched last year, has already reduced costs.” Use “who” for people, “which” for things, “that” in defining clauses, and “where” for places. Do not over-nest clauses; clarity comes first.
Memorized templates are obvious when they do not fit the question precisely. Use flexible frames sparingly, then adapt them with topic-specific content and accurate grammar. Examiners reward natural control more than rigid phrases.
High IELTS grammar performance comes from accurate fundamentals plus strategic variety. Master articles and agreement, keep tenses consistent, and add complexity through relative clauses, passives, modals, and conditionals only where they genuinely clarify your meaning. This balance is the fastest route to stronger bands in both Writing and Speaking.