Modal Verbs - How to Use 'Must', 'Have to' and 'Should'

source: Oxford Online English     2017年10月19日
In this lesson, you can learn about the modal verbs must, have to and should.
Do you know the difference between 'must', 'have to' and 'should'? English learners often mix up these three verbs. In this lesson, you can learn how to use must, have to and should correctly in English. You can see the full lesson here:

This lesson will help you:
- Learn about the differences between 'must' and 'have to'.
- Understand how to use 'must' and 'have to' correctly to talk about obligations.
- Learn the differences between 'mustn't' and 'don't have to'.
- With the differences between 'must' and 'should'.
- Understand how to use these modal verbs to discuss obligations, give advice, explain something is forbidden, say something is not necessary, and give your opinion in English.

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