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MyShirley Posted 20 years ago
Vocabulary

must not

I Must not have slept overly well or something.

this sentence means I didn't sleep well or I slept well?

thanks
  

Top answer

It means that based on your other observations, you conclude that you didn't sleep well. You're really tired or not thinking clearly - yet you know you went to bed on time. So because you feel this way, it must be because you didn't sleep well.

— BarbaraPA

  • It means that based on your other observations, you conclude that you didn't sleep well.
  • You're really tired or not thinking clearly - yet you know you went to bed on time.
  • So because you feel this way, it must be because you didn't sleep well.
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2 Answers
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It means that based on your other observations, you conclude that you didn't sleep well. You're really tired or not thinking clearly - yet you know you went to bed on time. So because you feel this way, it must be because you didn't sleep well.
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this is the "probability" usage of "must"
I probably didn't sleep well
(if you have Swan, Practical English Usage, btw a good book, check it there)
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