must\mustn't

You mustn't walk your dog here.

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You must put litter in the bin.

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You mustn't take photos here.

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You must be quiet.

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• You must eat here.

• You mustn't eat here.

• You must wash your hands.

• You mustn't wash your hands.

• You must turn off your mobile phone.

• You mustn't turn off your mobile phone.

• You must swim here.

• You mustn't swim here.

• You must walk your dog here.

• You mustn't walk your dog here.

• You must take photos.

• You mustn't take photos.