Modal verbs

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What are modal verbs?

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Modal verbs are auxiliary verbs that express necessity, possibility, permission, or ability. Examples include 'must', 'might', 'can', and 'should'.

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What does 'must' indicate?

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'Must' indicates a strong obligation or necessity. For example, 'You must wear a seatbelt.'

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What does 'mustn't' mean?

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'Mustn't' indicates prohibition. It means something is not allowed. For example, 'You mustn't smoke here.'

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What does 'don't have to' signify?

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'Don't have to' indicates that there is no obligation to do something. For example, 'You don't have to come if you don't want to.'

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What does 'doesn't have to' mean?

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'Doesn't have to' is the negative form of 'have to' and indicates that there is no obligation for someone else. For example, 'She doesn't have to finish it today.'

Front

When do we use 'must' in a sentence?

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'Must' is used when we feel strongly that something is necessary or required.

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When is 'mustn't' used?

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'Mustn't' is used to express that something is forbidden or not allowed.

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How do you express a lack of obligation using modal verbs?

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You can express a lack of obligation using 'don't have to' or 'doesn't have to'.

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Give an example of a sentence using 'must'.

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Example: 'You must study for the test to pass.'

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Give an example of a sentence using 'mustn't'.

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Example: 'You mustn't talk during the movie.'