常规的动词只需要在此为加上ed就可以了,但是还有一些不规则的动词需要特殊记忆.
不规则动词过去式和过去分词归纳
不规则动词过去式和过去分词 A.原形与过去式和过去分词完全相同.
cost----cost----cost cut----cut----cut put----put----put
let--let--let set-set-set hit--hit-hit
shut--shut-shut hurt-hurt--hurt read--read-read 读音 /e/
lie-lied--lied 说谎 lay--laid--laid 放置,下蛋
lay- lain 躺下,位于,平放
1.把动词原形中的o改为a,变成过去式.过去分词不变．如：
become—became,come—came
2．把动词原形中的i改为a,变成过去式.如：
begin—began,drink—drank,give—gave,ring—rang,sing—sang,sit—sat,swim—swam ,sink—sank,
3．把重读开音节中的i改为o,变成过去式.如：
drive—drove,ride—rode,shine—shone,win—won,write—wrote
4．动词原形中的e改为o,变成过去式.如：
get—got,forget—forgot
5．动词原形中的eep改为ept,变成过去式.如：
keep—kept,sleep—slept,sweep—swept
6.动词原形中的an改为oo,变成过去式.如：
stand—stood,understand—understood
7．改动词原形中的aw ／ow为ew,变成过去式.如：
draw—drew,grow—grew,know—knew,throw—threw（动词show除外,show—showed）
8．动词原形中的eak改为oke,变成过去式.如：
break—broke,speak—spoke
9．动词原形中的ell改为old,变成过去式.如：
sell—sold,tell—told
10．以ought和aught结尾,且读音是〔 :t〕的过去式.如：
bring—brought,buy—bought,think—thought,catch—caught,teach—taught
11．以ould结尾且读音为〔ud〕的情态动词过去式.如：
can—could,shall—should,will—would
12．在动词原形后加d或t变成过去式,并且发生音变.如：
hear〔hi 〕—heard〔h :d〕,say〔sei〕—said〔sed〕,
mean〔mi:n〕—meant〔ment〕,dream—dreamt 〔dremt〕
13．动词的过去式与动词原形一样.如：
cut—cut,hit—hit,hurt—hurt,let—let,must—must,
put—put,read—read〔red〕,set—set
14.动词的过去式有两种形式.如：
dream—dreamed/ dreamt learn—learnt/ learned shine—shone/ shined
smell—smelt/ smelled wake—woke/ waked
15．不符合上述规律的动词过去式.如：
am,is—was,are—were,build—built,do—did,eat—ate,fall—fell,
feel—felt,find—found,fly—flew,go—went,have ／has— had,hide—hid,
hold—held,lay—laid,leave—left,lie—lay,lose—lost,make—made,may—
might,run—ran,see—saw,smell—smelt,take—took,wake—woke,
wear—wore