Academic Tone in IELTS Writing: Contractions, Slang and 'I Think'

Ask ten IELTS candidates what "formal academic tone" means and you get ten lists of forbidden things. No contractions. Never write "I". Never use "get". Always use long words.

Some of that is true, some of it is merely weak style, and some of it is a rule nobody ever made. The confusion is expensive, because candidates spend attention on invented rules and miss the register problems that genuinely pull a score down.

Where register is actually marked

The four public band descriptors are Task Response, Coherence and Cohesion, Lexical Resource, and Grammatical Range and Accuracy. None of them is called "formality".

Register lives inside Lexical Resource, the criterion covering your vocabulary and how appropriately you use it. The question the descriptors ask is whether your word choice is appropriate, precise and controlled. So an informal word is a problem when it is the wrong tool for the meaning, not because informality is banned in itself.

That is the test to carry into the exam. Not "is this word formal enough" but "is this word doing the job precisely".

Three things that genuinely cost you

Slang and conversational fillers. These are wrong in academic writing because they are imprecise, not because they are casual.

Phrasal verbs at the informal end. Not all phrasal verbs are informal. "Carry out research" and "point out" are entirely standard in academic prose. The informal ones are the conversational ones: "get across", "sort out", "put up with", "come up with". Replace those with single verbs where a natural one exists: convey, resolve, tolerate, propose.

Addressing the reader directly. "As you can see" and "let me tell you" place the essay in a conversation. Task 2 is written for a general academic reader, not for a person you are speaking to. Remove the address and the sentence usually improves on its own.

Three things candidates wrongly believe are banned

"I think" and "in my opinion" are permitted. Many Task 2 questions ask directly for your opinion, and an essay that never states one loses marks under Task Response, the criterion measuring whether you answered the question with a clear position. You cannot give an opinion while pretending to have no self.

The real problem is repetition, not the pronoun. An essay where every paragraph opens with "I think" reads as a limited range of expression, which is a Lexical Resource issue.

So vary it.

1. In my view, the second approach is more practical.
2. This suggests that regulation is the more effective instrument.
3. The stronger argument lies with those who favour investment in prevention.
4. On balance, the disadvantages outweigh the short term gains.

Sentences 2 and 3 state a position without the pronoun at all. That is the skill worth building, and it is a stylistic upgrade rather than a rule you were breaking.

Contractions are weak, not fatal. "Don't" and "it's" belong to spoken and informal written English, so "do not" and "it is" are the better choice in an essay. But a single contraction does not trigger a penalty. It is one small piece of evidence about your control of register, weighed with everything else. Write the full forms because it is easy, then stop worrying about it.

Simple words are not a problem. This is the most damaging myth of the three. Candidates replace every ordinary word with a longer one from a memorised list and produce sentences like this:

Notwithstanding, the utilisation of vehicular transportation has been augmented in a plethora of metropolitan conurbations.

That sentence is not more academic. It is less clear, and two of its choices are wrong: "notwithstanding" needs something to stand against, and "plethora" means an excess rather than simply "many". The descriptors reward precise and appropriate word choice, so a wrong long word scores below a right short one.

More people drive in cities than they did twenty years ago.

That is correct, clear, and precise. It is not a weak sentence.

Before and after: an over-corrected paragraph

Here is a paragraph written by someone trying hard to sound academic.

Before

Notwithstanding the aforementioned, it is an undeniable fact that a plethora of individuals are of the opinion that the utilisation of social media platforms is detrimental to the youth of today. Basically, they reckon that kids spend loads of time online and this is a big deal for their mental wellbeing.

The paragraph mixes two failures. The first sentence is inflated and imprecise. The second collapses into conversational English: "basically", "reckon", "kids", "loads of", "a big deal". The mixture is common, because a writer who is performing formality cannot sustain it.

After

Many people argue that social media harms young users. The concern is time rather than content: hours spent scrolling are hours not spent sleeping, exercising or talking to people directly, and adolescence is the period when those habits are formed.

Shorter, plainer, and considerably more academic. Notice that "harms", "hours" and "talking" are all ordinary words. Register comes from control, not from vocabulary size.

The quick self check

Read your paragraph and ask three questions in this order.

1. Would I say this sentence out loud to a friend in exactly these words? If yes, it may be too conversational.
2. Do I know precisely what this word means, including which words it usually appears with? If no, replace it with the plain word you were originally thinking of.
3. Does the sentence still make sense if I remove the longest word in it? If yes, that word was decoration.

Question 2 is the important one. Every long word you use should be one you have seen in real sentences, not one you met on a list of "band 9 vocabulary".

What to do today

Take an essay you have already written. Highlight every word longer than three syllables. For each one, write the plain alternative next to it, then decide honestly which is more precise in that sentence.

Most candidates find that between a third and a half of their long words are decoration, and that removing them makes the writing sound more academic rather than less. That is the correct direction of travel.

Then check the informal end as well. Search for "get", "big", "a lot", "stuff", "thing" and "basically", and replace each one with something that names what you actually mean.

When you write your next full answer, Bandly returns an estimated band for each of the four criteria with the reasoning attached, including how your word choice is reading. The bands are model generated estimates rather than an examiner's judgement, so treat them as a guide to what to revise next.