Match each base form to its past participle.

Explanation

The verbs in this past-participle set represent 3 verbs using a shared past-and-participle pattern with accepted spelling variants, 1 verb using separate past and participle patterns with accepted variants, and 1 verb using separate changes for past and participle. Participle matching depends on the verb's pattern class, while a form borrowed from a neighboring class is only a distractor; the dominant class is a shared past-and-participle pattern with accepted spelling variants (3 of 5), with 3 pattern classes represented.