Grammar Reference

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How to use am, is and are: positive and negative sentences, questions, short answers and contractions, with many simple examples.

How to use can and can't for ability, permission, requests and possibility, with questions, short answers and pronunciation tips.

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

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

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

The difference between used to (past habits), be used to (familiar with) and get used to (becoming familiar), plus would for past habits.

How to use must, may, might, could and can't to say how sure you are about the present and the past.

How to use have something done and get something done when another person does a job for you, in every tense.

How to use the subjunctive in English: base forms after suggest, insist and it is essential that, 'were' in unreal sentences, and fixed phrases.

How to use needn't have, could have, might have, should have, would have, was to have and other past modals to talk about the past precisely.

All grammar topics (53)