Match each base form to its past participle.
Correct answer
- fightfought
- drinkdrunk
- singsung
- swimswum
- ring — to sound a bell or telephone someonerung
- breakbroken
Explanation
The past-participle pattern mix here is 1 verb using one shared past-and-participle pattern, and 5 verbs using separate changes for past and participle. The participle match follows the verb's own irregular class, so resemblance to another verb's past form does not establish it; the dominant class is separate changes for past and participle (5 of 6), with 2 pattern classes represented.