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Anonymous Posted 15 years ago
Grammar

Important

What is the differences between have to /has to and must as an auxiliary verb?

please send me with all the details. in obligation sentences.
  

Top answer

Traditionally. ' must ' refers to an inner compulsion ( I must get a haircut soon ) while ' have to ' refers to a command from outside oneself ( We have to wear a uniform at school ), but in practice, 'have to' is taking over the function of 'must' and the distinction is becoming muddy – informally, at least. Also, there is no past tense of 'must', so you must use 'have to'.

— Mister Micawber

  • Traditionally.
  • ' must ' refers to an inner compulsion ( I must get a haircut soon ) while ' have to ' refers to a command from outside oneself ( We have to wear a uniform at school ), but in practice, 'have to' is taking over the function of 'must' and the distinction is becoming muddy – informally, at least.
  • Also, there is no past tense of 'must', so you must use 'have to'.
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1 Answers
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Traditionally. 'must' refers to an inner compulsion (I must get a haircut soon) while 'have to' refers to a command from outside oneself (We have to wear a uniform at school), but in practice, 'have to' is taking over the function of 'must' and the distinction is becoming muddy – informally, at least.

Also, there is no past tense of 'must', so you must use 'hav
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