Is this sentence grammatically correct:

I MUST go to a party.

Consider this sentence as a sentence that is out of context. If it's not proper, when it would be? What sentence it should then be followed by? Or in what situation it is correct?

  • One could think of many reasons why one might say that one must go to a party. The doctor just told you that unless you live a more active social life you will probably die of boredom. So it seems you (absolutely) must go to a party.
    – WS2
    May 15, 2016 at 17:11

2 Answers 2


Yes, why would it not be correct? You're saying it is necessary for you to go to a party. It could be because your mother insists that you should socialise with people, or that you feel your celebration of Liberation Day will be a failure if you don't find some party to attend, etc.


You could also say

I have to go to a party.

There are some teachers of EFL/ESL texts which claim have to refers to external motivation and that must, as in your sentence, refers to internal motivation. This distinction seems to work in some cases. In other cases the two seem synonymous:


I must go to the party tonight. I simply have to meet Sam Spade

it seems both verbs refer to internal motivation.

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