feel—felt—felt keep—kept—kept
sleep—slept—slept sweep—swept—swept
weep—wept—wept
6．过去式和过去分词都以aught或ought结尾的动词。如：
catch—caught—caught teach—taught—taught
bring—brought—brought buy—bought—bought
fight—fought—fought ciba ek—sought—sought
think—thought—thought
7．以ay结尾的动词，在过去式和过去分词中把ay变成aid。如：
lay—laid—laid pay—paid—paid
say—said—said
8．原形中的字母i改为o。例如：
win—won—won shine—shone/shined—shone/shined
9．原形中的字母i改为a。例如：
sit—sat—sat spit—spat—spat
10．原形中的an变为oo。例如：
misunderstand—misunderstood—misunderstood
stand—stood—stood
understand—understood—understood
11．原形中的ell变成old。如：
retell—retold—retold ll—sold—sold tell—told—told
12．原形中间的元音字母变成u。如：
dig—dug—dug stick—stuck—stuck
hang—hung—hung swing—swung—swung
13．其他的变化形式。如：
find—found—found flee—fled—fled
get—got—got have—had—had
hear—heard—heard hold—held—held
lead—led—led leave—left—left
light—lit/lighted—lit/lighted make—made—made
shoot—shot—shot slide—slid—slid
strike—struck—struck/stricken win—won—won
wind—wound—wound rewind—rewound—rewound
四、ABC型：即原形、过去式和过去分词各不相同
1．原形中含有字母i，在过去式中变为througha，在过去分词中变为u。如：
begin—began—begun drink—drank—drunk
ring—rang—rung sing—sang—sung
sink—sank—sunk swim—swam—swum
2．以字母ow或aw结尾的动词，在过去式中变成ew，过去分词则在原形后加n。如：
blow—blew—blown grow—grew—grown
know—knew—known throw—threw—thrown什么是wap
draw—drew—drawn
3．原形以ear结尾的动词，过去式变为ore，过去分词变为orn。如：
bear—bore—born/borne tear—tore—torn
wear—wore—worn
4．过去分词是在原形词尾加n或en。如：
ari—aro—arin be—was/were—been
beat—beat—beaten drive—drove—driven
eat—ate—eaten fall—fell—fallen
foree—foresaw—foreen forgive—forgave—forgiven
give—gave—given mistake—mistook—mistaken
ri—ro—rin e—saw—en
w—wed—wn/wed shake—shook—shaken
shave—shaved—shaven/shaved show—showed—shown/showed
sow—sowed—sown/sowed take—took—taken
特殊：bite—bit—bitten forbid—forbade—forbidden
hide—hid—hidden rewrite—rewrote—rewritten
ride—rode—ridden write—wrote—written
5．过去分词是在过去式后面加n或en。如：
awake—awoke—awoken break—broke—broken
choo—cho—chon freeze—froze—frozen
speak—spoke—spoken forget—forgot—forgotten
steal—stole—stolen wake—woke—woken
6．其他变化形式的动词。如：
do—did—done go—went—gone
lie—lay—lain
五、只有过去式但没有过去分词的动词
can—could may—might
must—must shall—should
will—would
