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Guyper Posted 17 years ago
Grammar

She must be depressed 'cause she must have failed the exam

"She must be depressed 'cause she must have failed the exam"

Is it possible to use "must" twice in a phrase?

And is the term "must have" a term which expresses you don't know if it's true or not?

Thank you
  

Top answer

Hi. Welcome to English Forums. You can use "must" twice, but it is not smooth.

  • Hi.
  • Welcome to English Forums.
  • You can use "must" twice, but it is not smooth.
  • Must implies strong, personal confidence about something.
  • Must + Perfect Infinitive shows a conclusion because we have evidence something has happened.
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1 Answers
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Hi. Welcome to English Forums. You can use "must" twice, but it is not smooth. Must implies strong, personal confidence about something.

Must + Perfect Infinitive shows a conclusion because we have evidence something has happened.

She must have failed the exam = indeed, she's flunked it because of her mood, appearance (for instance she is upset, that's not usual of

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