MUST is a modal verb. With modals verbs, there is only one form of it for every subject pronoun: I must You must He must She must It must We must They must You see there is no change in the word MUST. Just like the other modal verbs, there is never an S at the end of must: He musts stop.

Understanding the Context

(This is NOT CORRECT) He must stop. (This is CORRECT) After Must we have the verb, or more specifically ... MUST definition: to be obliged or bound to by an imperative requirement. See examples of must used in a sentence.

Key Insights

With more than four dozen UNESCO World Heritage Sites in Spain, a high number of Michelin-starred restaurants and some of the world’s top hotels, Spain has some must-see attractions and experiences. The meaning of MUST is be commanded or requested to. How to use must in a sentence. MUST definition: 1. used to show that it is necessary or very important that something happens in the present or….

Final Thoughts

Learn more. Use of must explained with simple grammar rules, real examples and practical tips to master this modal verb for clear, confident English today Must - English Grammar Today - a reference to written and spoken English grammar and usage - Cambridge Dictionary The modal verbs of obligation are must, have to and need to. Though they are all related to necessity, there are differences. Understanding the correct usage of "must" and "mustn't" is essential for clarity in both spoken and written English. Whether you're a student, professional, or language enthusiast, mastering these modal verbs can significantly improve your communication skills. In this guide, I’ll provide you with clear definitions, practical examples, and common pitfalls to help you use "must" and "mustn't ...