Match each base form to its past simple form.

Explication

This past-simple set combines 4 verbs using one shared past-and-participle pattern, and 2 verbs using an unchanged three-form pattern. Each verb's irregular family controls the past-simple result; a similar-looking form from another family is not a spelling rule; the dominant class is one shared past-and-participle pattern (4 of 6), with 2 pattern classes represented.