What is the past tense of sweep?

The past tense of sweep is swept. This verb is irregular, as most past tense forms in English typically add -ed or -d to the base form of the verb. In the case of sweep, the past tense form is completely different, requiring a change in the vowel from ee to ep and the addition of a t at the end. For example:

• Present tense: I sweep the floor every day.
• Past tense: Yesterday, I swept the floor.