Variety is Key: Mix Simple, Compound, Complex Sentences

Imagine listening to a song that only has one note. It would be boring, right? Writing is the same. If every sentence has the exact same structure, the examiner will get bored (and you will lose marks for Grammatical Range).

To get a Band 7+, you need a mix or variety of sentence structures.

1. The Simple Sentence (Impact)

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  Structure: Subject + Verb + Object.
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  Example: "Education is essential."
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  When to use: Use these sparingly for emphasis. A short sentence hits hard.

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    "The solution is simple."
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    "This must change."

2. The Compound Sentence (Flow)

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  Structure: Two simple sentences joined by a coordinate conjunction (FANBOYS: For, And, Nor, But, Or, Yet, So).
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  Example: "I studied hard, but I failed the test."
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  Example: "The economy is growing, so unemployment is falling."
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  When to use: To connect related ideas of equal importance.

3. The Complex Sentence (Depth)

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  Structure: A main clause joined to a dependent clause (using words like although, because, if, when, which).
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  Example: "Although I studied hard, I failed the test."
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  When to use: To explain reasons, conditions, contrasts, or details. This should be the bulk of your academic essay.

How to Mix Them (The "Rhythm")

Read this paragraph:

Now read this:

Conclusion

Don't just obsess over making every sentence long. Focus on the rhythm of your writing. Use complex sentences to explain deep ideas, compound sentences to link thoughts, and simple sentences to drive home your main point.

Check out our other IELTS resources and practice tests to help you achieve your target band score!