英语动词的过去式和过去分词不规则变化形式多样，需要特别记忆。以下是一些常见不规则动词的变化示例：
A—A—A型
花费 （cost）: cost, cut, hit, hurt, let, put, read, set, shut, spread
A—B—A型
成为 （become）: become, come, run
A—B—B型
带来 （bring）: bring, build, burn, buy, catch, choose, come, do, drink, drive, eat, fall, feel, find, fly, forget, freeze, get, give, hide, keep, know, leave, lend, let, lose, make, pay, put, read, ride, ring, run, say, see, sell, send, show, shut, sing, sit, sleep, speak, spend, stand, take, teach, tell, think, throw, understand, wear, win, write
原形、过去式、过去分词均不一致
be: was, were, been
go: went
do: did, done
say: said, said
get: got, gotten
make: made, made
go: went
know: knew, known
take: took, taken
see: saw, seen
come: came, come
want: wanted, wanted
give: gave, given
use: used, used
find: found, found
give: gave, given
tell: told, told
think: thought, thought
look: looked, looked
want: wanted, wanted
give: gave, given
use: used, used
find: found, found
give: gave, given
tell: told, told
think: thought, thought
look: looked, looked
want: wanted, wanted
give: gave, given
use: used, used
find: found, found
give: gave, given
tell: told, told
think: thought, thought
look: looked, looked
want: wanted, wanted
give: gave, given
use: used, used
find: found, found
give: gave, given
tell: told, told
think: thought, thought
look: looked, looked
want: wanted, wanted
give: gave, given
use: used, used
find: found, found
give: gave, given
tell: told, told
think: thought, thought
look: looked, looked
want: wanted, wanted
give: gave, given
use: used, used
find: found, found
give: gave, given
tell: told, told
think: thought, thought
look: looked, looked
want: wanted, wanted
give: gave, given
use: used, used
find: found, found
give: gave, given
tell: told, told
think: thought, thought
look: looked, looked
want: wanted, wanted
give: gave, given
use: used, used
find: found, found
give: gave, given
tell: told, told
think: thought, thought
look: looked, looked
want: wanted, wanted
give: gave, given
use: used, used
find: found, found
give: gave, given
tell: told, told
think: thought, thought
look: looked, looked
want: wanted, wanted
give: gave, given
use: used, used
find: found, found
give: gave,