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When do we use must, have to, mustn't and needn't - Examples and tips

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Exercises

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1. I be at the meeting by 10:00. I will probably take a taxi if I want to be on time.

2. You submit the application if it has not been completely filled out. Check that the name, address, and background information are correct. If the form is not accurate and complete, you will be rejected and you will reapply at a later date.

3. Tina: Look at these flowers - they're beautiful! But, there's no card. Who could have sent them?
Stephanie: It have been David. He's the only one who would send you flowers.

4. You forget to pay the rent tomorrow. The landlord is very strict about paying on time.

5. You be so rude! Why don't you try saying "please" once in a while.

6. If you are over 18 in California, you take a driver training course to get a driver's license. You can have a friend or a family member teach you instead. But remember, you still get your permit before you start practicing.

7. You be rich to be a success. Some of the most successful people I know haven't got a penny to their name.

8. Ed: My car broke down in Death Valley last week. I have it towed more than a hundred miles to the nearest mechanic.
Lilly: That have cost a fortune!

9. While hiking in Alaska, you keep an eye out for bears. If you see one, you approach it. They are beautiful animals; however, they are wild and unpredictable in nature. You be afraid of them, but educating yourself about the dangers can help keep you safe.

10. I go to work tomorrow because it is Memorial Day. The best thing about a day off from work is that I get up at 6:00; I can sleep in till noon if I want to.

11. Yesterday, I cram all day for my French final. I didn't get to sleep until after midnight.

12. Nate: Oh no! I completely forgot we were supposed to pick Jenny up at the airport.
Barbara: She still be sitting there waiting for us.

13. Ingrid received a scholarship to Yale University which will cover 100% of the tuition. She worry at all about the increasing cost of education.

14. When I was a child my grandmother was continually correcting our manners. She always used to say, "One eat with one's mouth open." Or, she would correct us by saying, "One rest one's elbows on the table." And every time I wanted to leave the table, she would say, "One ask to be excused."

15. I've redone this math problem at least twenty times, but my answer is wrong according to the answer key. The answer in the book be wrong!

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1. I be at the meeting by 10:00. I will probably take a taxi if I want to be on time. 2. You submit the application if it has not been completely filled out. Check that the name, address, and background information are correct.

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Modal Verbs - How to Use Must, Have to and Should - English Grammar Lesson

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English Modal Verbs - How to Use 'Must' in English

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See the full version of this English modal verbs lesson here: http://www.oxfordonlineenglish.com/use-must-modal-verbs-video-lesson In this lesson, you can learn about the verb 'must'. 'Must' can have many different meanings in English. In this video, you can learn about the different meanings of 'must', and how to use 'must' in English.