Must or Mustn't | English Grammar for Beginners: Using Modal Verbs for Obligation + QUIZ

Learn how to use MUST or MUSTN'T in this English grammar lesson for beginners. I'll teach you WHEN we use must or mustn't and how to properly use these modal verbs in English to express obligation. At the end of the lesson, we will have a short quiz on must and mustn't.

Must is a modal verb. Modal verbs are followed by an infinitive (without to). In affirmative sentences, we use must when we mean it is necessary.

Example:
You must do your homework tonight.
They mustn't smoke inside the building.
Must we do the dishes?

Chapters:
00:00 - Intro
00:27 - Must (Affirmative Form)
02:08 - Uses of Must
03:50 - Mustn't (Negative Form)
05:35 - Must...? (Interrogative Form)
06:15 - Must or Mustn't Quiz
07:02 - Quiz Answers

Want to learn more modal verbs?
▶️ SHOULD or SHOULDN'T:    • SHOULD or SHOULDN'T for Giving Advice...  
▶️ CAN or CAN'T:    • Uses of CAN and CAN'T in English | Gr...  

👩🏼‍🏫 LEARN MORE:
🡆 Grammar Lessons:    • English Grammar Essentials  
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