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Can you use words such as don't, can't, won't and it's in IELTS Writing?

The safest approach is to use full forms in IELTS Writing, particularly when you are aiming for a formal or semi-formal academic style.

For example:

  • don't → do not

  • can't → cannot

  • won't → will not

  • it's → it is

  • doesn't → does not

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Why should you avoid contractions?

IELTS Writing requires you to choose an appropriate style and register for the task.

Using full forms can help your writing maintain a formal or neutral tone.

Compare:

Informal:  People don't always have enough time to exercise.

More formal:  People do not always have enough time to exercise.

The second version is generally more appropriate for an IELTS essay.

Will using a contraction automatically lower my IELTS score?

You should not think of one contraction as an automatic score penalty.

IELTS Writing is assessed across four criteria, including Task Response, Coherence and Cohesion, Lexical Resource, and Grammatical Range and Accuracy.

However, using informal language where a more formal style is appropriate can affect how appropriately you communicate your ideas.

Therefore, developing the habit of using full forms is a simple way to maintain an appropriate tone.

What about "it's"?

Be particularly careful with it's.

It can mean:

it is

or

it has

For example:

It's important to consider both sides.

can become:

It is important to consider both sides.

Do not confuse it with its, which is a possessive form.

The company changed its policy.

What about IELTS General Training Writing?

The appropriate style depends on the task.

In General Training Writing Task 1, you may be asked to write a letter. The required style can vary depending on the relationship with the recipient and the purpose of the letter.

For example, a personal letter can be less formal than a letter to an organisation.

Task 2 requires a semi-formal/neutral discursive essay, so full forms are generally the safer choice.

Should I avoid all informal language?

Not necessarily. The goal is not to make every sentence sound unnecessarily complicated. You should aim for language that is:

  • appropriate

  • clear

  • accurate

  • natural

  • relevant to the task

For example, replacing every simple word with a complicated synonym is not a good strategy.

Examples to remember

Contraction

Full form

don't

do not

can't

cannot

won't

will not

isn't

is not

aren't

are not

doesn't

does not

didn't

did not

shouldn't

should not

couldn't

could not

wouldn't

would not

Final takeaway

For IELTS Writing, especially Task 2, make full forms your default.

You do not need to make your writing unnecessarily complicated. Focus on answering the question fully, organising your ideas clearly and using accurate, appropriate language.

When in doubt, choose the full form.

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