Irregular VerbsPast tense of “swim”: swam, swum
The verb “swim” is irregular: its past simple is “swam” and its past participle is “swum”.
Base form (V1)
swim
/swɪm/
Past simple (V2)
swam
/swæm/
Past participle (V3)
swum
/swʌm/
Meaning
to move in water using your arms and legs
Example
They swam across the river.
Pattern
ABC — all three forms are different
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