IELTS Writing for Candidates stuck at Band 6.5: How to Fix Unnatural word combinations

Learn words in natural pairs such as 'make a decision', 'raise awareness' and 'heavy traffic', not as single words. Collocation errors are among the most noticeable lexical mistakes at Band 6 and below.

At a glance

For: Candidates stuck at Band 6.5
Problem: Unnatural word combinations
Scoring criterion: Lexical Resource
Task affected: Task 1 and Task 2
IELTS test: Academic or General Training (check your requirement)
Typical effort: two to three weeks
First step: When you meet a new word, note two or three verbs or adjectives that usually go with it.

Why this happens to candidates stuck at Band 6.5

Translation from another language produces combinations that are logical but not natural in English, for example 'do a mistake' or 'big traffic'. Examiners hear these immediately.

Why this affects candidates stuck at Band 6.5: practice is broad when it should target the single weakest criterion.

Range is good but collocation and precision slips remain.

A strength to build on: Most criteria are already close to Band 7, so one fix can lift the result.

Fix it in four steps

When you meet a new word, note two or three verbs or adjectives that usually go with it.
Use a collocation dictionary for your top ten essay topics.
Replace one weak phrase per paragraph with a stronger natural pair.
Read your essay aloud and mark any combination that sounds odd.

Before and after

Before

People should do more efforts to make a big pollution decrease.

After

People should make more effort to bring about a significant reduction in pollution.

Ten-minute drill: Write five correct collocations for 'decision', 'risk' and 'effect' and use one in a sentence each.

Questions and answers

How can candidates stuck at Band 6.5 fix unnatural word combinations?

How long does it take candidates stuck at Band 6.5 to fix unnatural word combinations?

Most learners need two to three weeks. Two to four weeks of targeted practice on the lowest criterion is a realistic window.

What is a collocation?

A pair or group of words that naturally go together, such as 'strong evidence' or 'pursue a career'. Using them correctly makes writing sound natural.

How do I find collocations quickly?

A learner's collocation dictionary or the example sentences in an online learner's dictionary show the most common combinations.

What does a good practice drill look like for candidates stuck at Band 6.5?

Write five correct collocations for 'decision', 'risk' and 'effect' and use one in a sentence each. Two to four weeks of targeted practice on the lowest criterion is a realistic window.

How can candidates stuck at Band 6.5 tell they have fixed unnatural word combinations?

Few phrases in your essay are flagged by a dictionary or a teacher as unnatural.

What should candidates stuck at Band 6.5 know about their IELTS Writing target?

At Band 6.5, one criterion is usually holding the score back. Finding it matters more than more general practice.

Should candidates stuck at Band 6.5 practise this on Task 1, Task 2 or both?

It shows up in both tasks. Fix it in Task 2 first, because Task 2 carries about twice the weight of Task 1, then check Task 1 with the same checklist. Most criteria are already close to Band 7, so one fix can lift the result.

Can an AI checker help candidates stuck at Band 6.5 with unnatural word combinations?

An AI checker can show where this pattern appears in your own essay and which criterion it affects, which makes the fix concrete. It gives a practice estimate, not an official IELTS score, so use it to choose the next revision, rewrite, and check again. The first check on this site is free.

Check your own essay

See where unnatural word combinations appears in your own writing and which criterion it affects, then rewrite the weakest paragraph.

Run a free first check

Feedback is a practice estimate, not an official IELTS score. Last reviewed 2026-11-11. Score requirements change, so confirm them with the organisation that will read your result.