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Grammar

Grammar is the way in which words are put together to form proper sentences. Do you want a quick answer to a specific point, such as whether it's wrong to split an infinitive or to end a sentence with a preposition such as on? If so, go straight to our quick-reference grammar tips section.

If you want more detailed advice on, for example, types of pronouns or how to build well-formed sentences, browse through the headings below and explore the different sections:

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Grammar tips

From dangling participles to split infinitives to double negatives, here are straightforward answers to all the grammar questions you’ve been asking.

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Punctuation

From commas to semicolons, via question marks and bullet points, punctuation is a vital part of writing. But why do we need it, and how should it be used?

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Spelling

Spelling matters. Whether you’re trying to avoid common misspellings or uncertain how to form adverbs, this section will help you become a spelling expert.

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Usage

Affect or effect? Complement or compliment? Imply or infer? Its or it’s? This section will help you avoid the most common mistakes in language usage.

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Word classes

Do you know how many parts of speech there are in English, and how to use all of them? Find out with our guide to English word classes.

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Writing help

This section gives guidelines on writing in everyday situations, from applying for a job to composing letters of complaint or making an insurance claim.

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Grammar A–Z

Some grammatical terms are familiar, but others can be hard to remember: our glossary is a handy guide to all the grammar terminology you need.