Grammar Reference

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Complete guide to the present perfect tense — connecting past actions to the present.

All four conditional types explained with clear rules, examples, and common mistakes.

How to form and use the passive voice in English, with tense-by-tense examples.

Complete guide to English modal verbs — can, could, should, must, may, might, and more.

How to use who, which, that, where, and when to add information to sentences with relative clauses.

When to use verb + -ing (gerund) vs. verb + to (infinitive) — rules, verb lists, and meaning changes.

How to form and use question tags — isn't it?, don't they?, can you? — for confirmation and conversation.

Essential English phrasal verbs — what they are, how they work, and the most common ones to learn.

How to connect ideas with and, but, because, although, while, and other conjunctions.

Tricky cases of subject-verb agreement — when the correct verb form isn't obvious.

How to form and use the present perfect continuous (have been + -ing) with for, since and how long, and how it differs from the present perfect.

All grammar topics (53)