buy,lend ,go ,sit,read ,think,get ,write ,come ,pay,bring,sweep,send,be,fly的过去式及过去分词．

原型 过去式 过去分词
1.buy bought bought
2.lend lent lent
3.go went gone
4.sit sat sat
5.read read read
6.think thought thought
7.get got got/gotten
8.write wrote written
9.come came come
10.pay paid paid
11.bring brought brought
12.sweep swept swept
13.send sent sent
14.be was/were been
15.fly flew flewn

bought bought
lend lend
went gone
sat sat
read read
thought thought
got gotten
wrote written
came come
pay pay
brought brought
swept swept
sent sent
(was were were) been
flied flied

buy-bought-bought lend-lent-lent go-went-went sit-sat-sat read-read-read think-thought-thought get-got-got write-wrote-wrote come-came-come pay-paid-paid bring-bought-bought sweep-swept-swept send-sen...

buy bought bought
lend lent lent l
go went gone
sit sat sat
read read read
think thought thought
get got gotten
write wrote written
come came came
pay payed payed
bring brought brought
sweep swept swept
send sent sent
be been been
fly flew flown