Regular and Irregular Verbs

Regular

Regular verbs do not change into substantially different words as they move from singular to plural or past to present. Most verbs are regular--for example: walks/walk/walked, lifts/lift/lifted or hears/hear/heard.

Irregular

Irregular verbs change into substantially different words as they move from singular to plural or past to present; for example: am/are, has/have and does/do.

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