từ nào ghi một lần thì quá khứ phân từ cũng như vậy

eat-ate-eaten

drink-drank-drunk

play-played-played

dance-danced

think-thought

meet-met

work-worked

wash-washed

watch-watched

write-wrote-writen

read-read-read

buy-bought

begin-bega(u)n

sleep-slept

cook-cooked

drive-drove-driven

sing-sang-sung

ring-rang-rung

bring-brought

catch-catched

teach-taugh

clean-cleaned

study-studied

put-put-put

break-broke-broken

understand-understood

live-lived

speak-spoke-spoken

call-called

have-had-had

do-did-done

leave-left

is/are- was/were-been

see-saw-seen

know-known

give-given