**Here are 10 examples of using the word «must» in English:**
1. You **must** finish this report by tomorrow. It's the deadline.
2. She **must** be very tired after working all day.
3. I **must** go to the dentist. My tooth is hurting.
4. They **must** have studied hard for the exam. They got excellent results.
5. It **must** rain today. I can hear thunder in the distance.
6. You **must** wear a helmet when you ride a bike. It's important for your safety.
7. He **must** have seen the movie before. He knows all the characters.
8. We **must** leave early if we want to catch the train.
9. She **must** be at home now. I just saw her car in the driveway.
10. It **must** be a difficult decision to make. There are so many options.