谁帮我变过去式？

drove
bought
rode
swam
wrote
ate
flew
stayed
had
took
became
drank
fried
hung挂/hanged绞死
skated
picked
sat
felt
taught
lost
stopped
studied
played
drew
gave
carried
found
said
told
liked

drive---drove
buy---bought
ride---rode
run---ran
swim---swam
write---wrote
eat---ate
fly---flew
stay---stayed
have---had
take---took
become---became
drink---drank
fry---fried
hang---hanged;hung
skate---skated
pick---picked
sit---sat
feel---felt
teach---taught
lose---lost
stop---stopped
study---studied
play---played
draw---drew
give---gave
carry---carried
find---found
say---said
tell---told
like---liked

drove,bought,rode,swam,wrote,ate,flew,stayed,had,took,became, drank,fried,hung/hanged,skated,picke