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Hello, chicos! Today, we're going to learn about the verbs must and mustn't.

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Must means an obligation or something that should be done.

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Mustn't is short for must not, which means a prohibition or something that is not allowed.

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Here are some examples for must.

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You must brush your teeth before going to bed.

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You must study for the exams.

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You must eat healthy food.

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Here are some examples for mustn't.

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You mustn't sleep in class.

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You mustn't cheat on the test.

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You mustn't eat chocolate for dinner.

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Thank you for listening.