We usually use must to talk about obligations which come from the speaker and we generally use have (got) to when we refer to obligations that come from outside the speaker. …

MUST definition: to be obliged or bound to by an imperative requirement. See examples of must used in a sentence.

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Must is a modal verb. It is followed by the base form of a verb. You use must to indicate that you think it is very important or necessary for something to happen. You use must not or mustn't to indicate that you think it is very important or necessary for something not to happen.

Have to is a more informal while Must is mostly used in written orders or instructions. Also, Must expresses obligation imposed by the speaker while Have to expresses external obligation.

Must | Learn English Modal Verbs | English Grammar Lesson by Woodward ...

A must is something that's so important it can't be missed or ignored. When you're taking kayaking lessons, a lifejacket is a must.

Understanding the modal verb ‘must’ is crucial for expressing obligation, necessity, and strong deductions in English. This article offers a thorough exploration of ‘must,’ covering its various functions, grammatical structures, and usage nuances.

This article dives into "must" and "have to" for expressing necessity and obligation. Detailed explanations and a quiz to test your knowledge.