English6 min read

Common IELTS Grammar Mistakes to Avoid for a Higher Score

By AhsanJuly 11, 2026

The most common IELTS grammar mistakes can significantly lower your overall score, even if your vocabulary and pronunciation are excellent. To achieve a high band score, it's crucial to identify and correct these mistakes. In this article, we will explore the most frequent IELTS grammar mistakes and provide tips on how to avoid them.

Introduction to IELTS Grammar Mistakes

The International English Language Testing System (IELTS) is a standardized test that assesses the English language proficiency of non-native speakers. The test consists of four sections: listening, reading, writing, and speaking. Grammar plays a vital role in the writing and speaking sections, and even small mistakes can affect your score. IELTS grammar mistakes can be categorized into several types, including verb tense errors, subject-verb agreement mistakes, and sentence structure errors.

Verb Tense Errors

One of the most common IELTS grammar mistakes is the incorrect use of verb tenses. In the writing section, you may be asked to write about a past event, a current situation, or a future plan. Using the correct verb tense is essential to convey your message clearly. For example, if you are writing about a past event, you should use the past simple or past perfect tense. On the other hand, if you are writing about a future plan, you should use the future simple or future perfect tense.

Step-by-Step Tips to Avoid Verb Tense Errors

To avoid verb tense errors, follow these steps:

* Read the question carefully and identify the time frame.

* Choose the correct verb tense based on the time frame.

* Use the correct verb form, such as the past simple or past perfect.

* Check your writing for consistency in verb tense.

Subject-Verb Agreement Mistakes

Another common IELTS grammar mistake is the subject-verb agreement error. This occurs when the subject and verb do not agree in number. For example, if the subject is a singular noun, the verb should also be singular. On the other hand, if the subject is a plural noun, the verb should also be plural. Here are a few examples:

* Singular subject: The cat sleeps on the bed. (The subject 'cat' is singular, and the verb 'sleeps' is also singular.)

* Plural subject: The cats sleep on the bed. (The subject 'cats' is plural, and the verb 'sleep' is also plural.)

Examples of Subject-Verb Agreement Mistakes

The following are some examples of subject-verb agreement mistakes:

* The team are playing well. (Incorrect - The subject 'team' is singular, and the verb 'are' is plural.)

* The teams is playing well. (Incorrect - The subject 'teams' is plural, and the verb 'is' is singular.)

* The team is playing well. (Correct - The subject 'team' is singular, and the verb 'is' is also singular.)

Sentence Structure Errors

Sentence structure errors are another type of IELTS grammar mistake. These errors occur when the sentence is not structured correctly, making it difficult to understand. Here are a few examples of sentence structure errors:

* Fragmented sentences: A sentence that is not complete, such as 'Because I forgot my umbrella.'

* Run-on sentences: A sentence that contains two or more independent clauses without proper punctuation, such as 'I went to the store and I bought some milk and I came home.'

* Incorrect use of modifiers: A modifier that is not placed correctly in the sentence, such as 'Having studied all night, the exam was easy.'

Tips to Avoid Sentence Structure Errors

To avoid sentence structure errors, follow these tips:

* Use complete sentences that have a subject and a verb.

* Use proper punctuation to separate independent clauses.

* Place modifiers correctly in the sentence.

Common IELTS Grammar Mistakes to Watch Out For

Here are some common IELTS grammar mistakes to watch out for:

* Using the passive voice incorrectly

* Using the correct form of the verb 'to be'

* Using the correct form of the verb 'to have'

* Using the correct form of the verb 'to do'

* Using the correct form of the verb 'to make'

Here are some examples of these mistakes:

* The ball was thrown by John. (Correct - The passive voice is used correctly.)

* The ball were thrown by John. (Incorrect - The verb 'were' is not the correct form of the verb 'to be' in the passive voice.)

* I am studying English. (Correct - The verb 'am' is the correct form of the verb 'to be' in the present continuous tense.)

* I are studying English. (Incorrect - The verb 'are' is not the correct form of the verb 'to be' in the present continuous tense.)

How to Improve Your IELTS Grammar

To improve your IELTS grammar, follow these steps:

* Practice writing and speaking in English regularly.

* Read English books and articles to improve your vocabulary and grammar.

* Listen to English podcasts and watch English videos to improve your listening and speaking skills.

* Take a course or get a tutor to help you improve your grammar and vocabulary.

At AHK Academy, you can take a free placement test to assess your English language proficiency and get a recommendation for the best course to improve your IELTS grammar. Visit https://ahkademy.com/register to take the test.

Conclusion

In conclusion, IELTS grammar mistakes can significantly lower your overall score. To avoid these mistakes, it's essential to practice writing and speaking in English regularly, read English books and articles, and listen to English podcasts and watch English videos. By following these tips and avoiding common IELTS grammar mistakes, you can improve your IELTS grammar and achieve a higher band score.

Frequently Asked Questions

Q: What are the most common IELTS grammar mistakes?

A: The most common IELTS grammar mistakes include verb tense errors, subject-verb agreement mistakes, and sentence structure errors.

Q: How can I improve my IELTS grammar?

A: You can improve your IELTS grammar by practicing writing and speaking in English regularly, reading English books and articles, and listening to English podcasts and watching English videos.

Q: What is the difference between the present simple and present perfect tense?

A: The present simple tense is used to describe habits or routines, while the present perfect tense is used to describe an action that started in the past and continues up to the present.

Q: How can I avoid subject-verb agreement mistakes?

A: You can avoid subject-verb agreement mistakes by making sure the subject and verb agree in number.

Q: What are some common sentence structure errors?

A: Common sentence structure errors include fragmented sentences, run-on sentences, and incorrect use of modifiers.

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