The word "IELTS" may sound a bit terrifying to some non-native speakers like us. But keep in mind that anything is tough when you are starting it. In IELTS, to crack the cheat code is to have a vast knowledge of vocabulary.
But one thing gets missed out on when students are just focusing on memorizing the vocabulary and forget that grammar also plays a crucial role in English communication.
Remember, when the grammar ground is firmer, no one can beat you up in your IELTS writing game. So, not only conquering the vocabulary knowledge but also maintaining the grammar has to be the priority.
This blog will take you to those points of grammar that are really common mistakes in IELTS writing.
Common Mistakes in IELTS Writing
1. Subject-Verb Agreement
Subject-verb agreement is considered one of the most frequent mistakes in IELTS writing. A verb must agree with its subject in number (singular or plural).
Examples:
- ❌ The results of the research shows that…
- ✅ The results of the research show that…
Tip: Watch out for phrases that come between the subject and the verb, such as “along with,” “as well as,” and “including.” They do not change the number of the subject.
Practice:
- The group of students is planning a trip. (Correct: is)
- The effects of climate change have been severe. (Correct: have)
2. Tense Consistency
Many candidates lose marks for shifting tenses unnecessarily. In IELTS Writing Task 1 and Task 2, it’s important to maintain the same tense unless there’s a reason to change.
Common Errors:
- ❌ Last year, the government introduce new policies to reduce pollution.
- ✅ Last year, the government introduced new policies to reduce pollution.
Tips:
- Task 1 (Graphs/Charts): Always try to use the past tense for historical data, the present tense for trendy stuff, and the future tense for predictions, which you think may appear in the future.
- Task 2 (Essay): In general, discuss general facts or your opinion in the present tense, and if you want to use, for example, the past tense.
Practice:
- Many people (believe/believed) that technology improves education. (Present: believe)
- In 2010, the unemployment rate was at its lowest in decades. (Past: was)
3. Articles (A, An, The)
Articles are small words, but misusing them is a common cause of grammar mistakes.
Key Rules:
- Use 'a' before singular nouns that begin with a consonant sound: a university, a car
- Use 'an' before singular nouns that begin with a vowel sound: an apple, an hour
- Use 'the' for specific nouns or something already mentioned: the government, the report
Tips:
- Practice articles by reading academic texts and noting their usage.
- If unsure, try to avoid using the article. Often, in IELTS Writing, correct omission is preferable to incorrect usage.
- Do not use an article with plural or uncountable nouns when talking generally: *People enjoy sports, not the people enjoy sports
4. Prepositions
Prepositions (in, on, at, by, for, with) often confuse IELTS candidates. Misuse can make sentences grammatically incorrect.
Examples:
- ❌ She is good in mathematics.
- ✅ She is good at mathematics.
- ❌ Many students is interested in online learning.
- ✅ Many students are interested in online learning.
Tips:
- Learn prepositions in chunks, for example: interested in, responsible for, dependent on.
- Avoid translating prepositions directly from your native language; they often don’t match English usage.
5. Countable vs Uncountable Nouns
Understanding countable and uncountable nouns has an impact on quantifiers, verb agreement, and article usage.
- Countable nouns can be singular or plural: book/books, car/cars
- Uncountable nouns cannot be plural: information, advice, equipment
Common Mistakes:
- ❌ Many informations are available online.
- ✅ Much information is available online.
Tip:
Use 'some' or 'a lot of' for uncountable nouns and 'many' or 'few' for countable nouns.
6. Sentence Fragments and Run-On Sentences
Many students lose marks for incomplete sentences or run-on sentences.
Sentence Fragment Example:
- ❌ Because students need more practice.
- ✅ Students need more practice because it helps them improve faster.
Run-On Sentence Example:
- ❌ Technology is growing fast it is changing education.
- ✅ Technology is growing fast, and it is changing education.
Tip:
Break complex ideas into clear, grammatically correct sentences. Use conjunctions (and, but, although, however) carefully.
7. Incorrect Use of Pronouns
It can be confusing to use pronouns like "he", "she", "it", "they", "which", and "who". Grammar and clarity are impacted when pronouns are misused.
Examples:
- ❌ The report was excellent, which impressed the teacher. (Ambiguous).
- ✅ The report was excellent and impressed the teacher.
Tip:
Verify that the pronoun is clearly referring to a particular noun. Don't use "which" or "that" incorrectly.
8. Word Form Errors
Using the wrong form of a word can lower your IELTS score. Pay attention to nouns, verbs, adjectives, and adverbs.
Examples:
- ❌ She gave a quick respond.
- ✅ She gave a quick response.
- ❌ The teacher explained very clear.
- ✅ The teacher explained very clearly.
Tip:
Keep a small list of common word forms that often confuse learners, e.g., advice/adviser, affect/effect, practice/practise.
9. Parallel Structure
Parallelism ensures that parts of a sentence are grammatically consistent, especially in lists or comparisons.
Example:
- ❌ Students enjoy reading, to write essays, and they like playing sports.
- ✅ Students enjoy reading, writing essays, and playing sports.
Tip:
In IELTS essays, use parallel structures for clarity and style.
10. Proofreading for Grammar
Errors may occur during the test even if you are fully aware of the guidelines. Proofreading is crucial.
Tips for Effective Proofreading:
- Leave 3-5 minutes at the end of Writing Task 1 and Task 2.
- Check for subject-verb agreement, articles, tenses, and spelling errors.
- Read aloud if possible—errors are easier to catch when you hear them.
- Focus on common mistakes you personally make rather than trying to catch every error.
Conclusion
Grammar is more than just following the rules; it's about writing in a clear, accurate, and professional manner. Your band score can be considerably raised by avoiding common IELTS writing errors.
Key Takeaways:
- Pay attention to subject-verb agreement and tense consistency.
- Use articles and prepositions correctly.
- Understand countable vs uncountable nouns.
- Avoid fragments, run-on sentences, and unclear pronouns.
- Maintain parallel structure and correct word forms.
- Always proofread your writing before submission.
You can present a polished, high-scoring IELTS essay and prevent mark loss with regular practice and awareness of these typical errors. Recall that the foundation of good communication is grammar; if you can master it, you'll be halfway to success on the IELTS!
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FAQ’s
1. What are the most common grammar mistakes students make?
The most frequent ones include
- Subject-verb disagreement (e.g., He go to school ❌ → He goes to school ✅)
- Article errors (a, an, the)
- Tense inconsistency
- Wrong prepositions
- Sentence fragments or run-ons
2. What’s the best way to check my grammar before submitting the test?
- Leave 2–3 minutes for proofreading.
- Check for subject–verb agreement, tenses, and plural forms.
- Read your sentences silently—if you stumble, it might be grammatically off.