Multiple choice

swim, swam, ___________________

  1. swum

  2. swimmed

  3. swam

  4. swim

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The verb "swim" follows an i-a-u vowel pattern: swim (base), swam (past simple), and swum (past participle). "Swimmed" is an incorrect regularized form.