I've seen sentences like:

  1. Is it must to marry?

  2. Is it a must to get married?

I think they both mean the same in this example, but I see some difference in the words.

  • What is the difference?

  • When to prefer one over the other?

1 Answer 1


Usually, the word "must" is a verb. Specifically, it's an auxiliary verb, used in sentences like "You must get married!"

Sometimes, the word "must" is used as a noun, meaning an action which is necessary or an object which is needed. This is the way that the word "must" is used in the sentences "Is it a must to get married?" and "For running, good shoes are a must."

However, the word "must" is extremely rarely used as an adjective. So the question "Is it must to marry?" is an error; it should be something like "Must I marry?" or "Is it necessary to marry?"

  • while agreeing with your point, one may ask a question, like 'If must can be used as a noun, why can't it be used as an adjective?'
    – Ram Pillai
    Apr 2, 2020 at 4:26
  • @RamPillai Well, most verbs can't be used as adjectives, and most nouns can't be used as adjectives, either. So there's no reason to think that "must" might be usable as an adjective. Apr 2, 2020 at 12:04
  • @RamPillai Are you thinking that in the compound "must-have", the word "must" is acting as an adjective? It is not. Apr 2, 2020 at 16:46
  • In examples like, 'Mask is a 'must have' for health workers' 'have' stands for a noun and must, an adj. 2) Smoking is a 'must stop'. 3) For aneamic people, iron-compounds are a 'must take'. These usages may not be common, but articulating a sentence this way, I think, won't violate the grammar rules.
    – Ram Pillai
    Apr 3, 2020 at 0:36

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