Match each base form to its past participle.
Correct answer
- shutshut
- costcost
- spreadspread
- betbet
- quitquit
- splitsplit
Explanation
These past-participle matches draw on 6 verbs using an unchanged three-form pattern. Use the stored irregular class for the participle: neither an -ed default nor a nearby past-tense shape proves the match; the dominant class is an unchanged three-form pattern (6 of 6), with 1 pattern class represented.