原形 过去式 过去分词
finish finished finished
borrow borrowed borrowed
stay stayed stayed
stop stopped stopped
drop dropped dropped
let let let
pay paid paid
eat ate eaten
come came come
lend lent lent
sleep slept slept
cry cried cried
study studied studied
原形 过去式 过去分词
finish finished finished
borrow borrowed borrowed
stay stayed stayed
stop stopped stopped
drop dropped dropped
let let let
pay paid paid
eat ate eaten
come came come
lend lent lent
sleep slept slept
cry cried cried
study studied studied