musta

Verb (1)

must (third-person singular simple present must, no present participle, simple past must, no past participle)

1. (auxiliary, defective, modal, no-past-participle, no-present-participle) To do as a requirement; indicates that the sentence subject is required as an imperative or directive to execute the sentence predicate, with failure to do so resulting in a failure or negative consequence.
   • You must arrive in class on time.
2. (auxiliary, defective, modal, no-past-participle, no-present-participle) To do with certainty; indicates that the speaker is certain that the subject will have executed the predicate.
   • If it has rained all day, it must be very wet outside.
3. (auxiliary, defective, modal, no-past-participle, no-present-participle) Used to indicate that something is very likely, probable, or certain to be true.
   • The children must be asleep by now.

Verb (2)

must (third-person singular simple present musts, present participle musting, simple past and past participle musted)

1. (auxiliary, defective, modal, transitive) To make musty.
2. (auxiliary, defective, intransitive, modal) To become musty.

See all 9 meanings of must