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Sarah khan Posted 14 years ago
Vocabulary

What is the past form of 'must' ??

hey , it's myla here and want to know about the past form of 'must' ,
like , the past form of should is 'should have' so what's the past form of that ...
and kindly give some examples !!
thanks
Regards Emotion: smile
  

Top answer

'Must have' is used differently: it is used to express certainty. I must have been drunk last night; I remember nothing . 'Must' in the sense of necessity or obligation uses 'had to' in the past.

  • 'Must have' is used differently: it is used to express certainty.
  • I must have been drunk last night; I remember nothing .
  • 'Must' in the sense of necessity or obligation uses 'had to' in the past.
  • I must see the doctor tomorrow I have to see the doctor tomorrow.
  • I had to see the doctor yesterday .
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1 Answers
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'Must have' is used differently: it is used to express certainty. I must have been drunk last night; I remember nothing.

'Must' in the sense of necessity or obligation uses 'had to' in the past.

I must see the doctor tomorrow
I have to see the doctor tomorrow.
I had to see the doctor yesterday. -- This is the past form of both of the preceding

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