Prepositions are small words, but they create big problems for IELTS students. Words like in, on, at, for, to, and of seem simple, yet even students with good English often use them incorrectly.
Students may have strong ideas and vocabulary, but incorrect prepositions affect their Grammar score in both Writing and Speaking. The challenge is not understanding prepositions — it is using them naturally and accurately.
Prepositions do not always follow clear rules. In many cases, they depend on fixed combinations rather than logic.
For example:
Because of this, students often translate directly from their native language, which leads to errors.
Let us look at some frequent mistakes IELTS students make and how to correct them.
Incorrect:
We discussed about the problem.
Correct:
We discussed the problem.
Why?
“Discuss” does not need a preposition. Adding about is unnecessary.
Incorrect:
He explained about the process.
Correct:
He explained the process.
Fix:
Use explain something, not explain about something.
Incorrect:
She is married with a doctor.
Correct:
She is married to a doctor.
Incorrect:
He is responsible of the project.
Correct:
He is responsible for the project.
Incorrect:
She is good in English.
Correct:
She is good at English.
Incorrect:
I saw it in the internet.
Correct:
I saw it on the internet.
Incorrect (in IELTS context):
This is different than that.
Correct:
This is different from that.
Students often mix in, on, and at when talking about time.
Example:
Incorrect:
The meeting is in Monday.
Correct:
The meeting is on Monday.
Prepositions are especially important in Task 1 when describing data.
Example:
Incorrect:
The number increased from 50 to 100 in 2010.
Correct:
The number increased from 50 to 100 in 2010. (The year is correct, but students often confuse with “at” or “on”)
Another example:
Incorrect:
Sales increased of 20%.
Correct:
Sales increased by 20%.
Improving prepositions is not about memorising long rules. It requires awareness and practice.
Consistency is more important than perfection.
Prepositions may seem small, but they play an important role in your IELTS performance. Frequent errors can lower your grammar score, even if your ideas are strong.
The goal is not to learn every rule, but to become familiar with common patterns and avoid repeated mistakes.
For structured grammar improvement and practical IELTS training, Focus Education can help you build accuracy and confidence step by step.
