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Wangqh2696122 Posted 13 years ago
Grammar

Can't vs mustn't

What's the difference between can't and mustn't? Are both ok in the following sentence? Thank you!
You mustn’t/ can't take heavy clothes when you go to Bangkok where temperatures are very hot all the year round.
  

Top answer

I think "you mustn't" means "you shouldn´t" whereas "you can´t" means "you are not allowed to"

  • I think "you mustn't" means "you shouldn´t" whereas "you can´t" means "you are not allowed to"
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3 Answers
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I think "you mustn't" means "you shouldn´t" whereas "you can´t" means "you are not allowed to"
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Anonymous I think "you mustn't" means "you shouldn´t" whereas "you can´t" means "you are not allowed to"
can't can also mean shouldn't. Now look at Longman Dictionary of Contemporary English:

used to say that someone should not or must not do something
You can't expect the world to change overnight.
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you mustn't = you are not allowed to (prohibition)
you can't = you are not able to (impossibility)

I would probably use shouldn't in your sentence.

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