Past tense of must
irregular verb
The past tense of must is must. The past participle is also must.
Forms of must
| Base form (V1) | must /məst/ |
|---|---|
| Past tense (V2) | must /məst/ |
| Past participle (V3) | must /məst/ |
| Present participle | musting |
| Third person singular | must /məst/ |
Past tense of must by meaning
- to do as a requirement; indicates that the sentence subject is required as an imperative...: must
- to make musty.: musted
Meaning of must
- verb 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.
- verb To do with certainty; indicates that the speaker is certain that the subject will have executed the predicate.
- verb Used to indicate that something is very likely, probable, or certain to be true.
Verbs like must
Questions about the past tense of must
- What is the past tense of must?
- The past tense of must is must.
- What is the past participle of must?
- The past participle of must is must.
- Is must a regular or irregular verb?
- Must is an irregular verb: its past tense keeps the same form as the base form.
Source and license
Adapted from Wiktionary: must (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.
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Cite this page: “Past tense of must.” Word.ws, https://word.ws/past-tense/must. Based on Wiktionary, CC BY-SA 4.0.