Multiple choice

Past tense of the word 'swim' is

  1. swam

  2. swims

  3. swum

  4. swimmed

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A Correct answer
Explanation

The past tense of 'swim' is 'swam'. This is an irregular verb where the vowel changes from 'i' to 'a'. 'Swum' is the past participle form (used with 'have/has'), not the simple past tense.