A. 原形與過(guò)去式和過(guò)去分詞完全相同.
cost----cost----costcut----cut----cut put----put----put
let----let----let set----set----sethit----hit----hit
shut----shut----shut hurt---hurt----hurtread---read----read　讀音 /e/

lie---lied---lied說(shuō)謊lay---laid---laid 放置,下蛋
lay--- lain 躺下,位于,平放
eg. The hens don’t _______eggs during such cold weather.
She _____ her books on the table. ____
B.過(guò)去式與過(guò)去分詞完全相同
1. 過(guò)去式和過(guò)去分詞中含有ought, aught, 讀音是［ :t］
bright----brought----broughtthink----thought----thoughtbuy----bought----bought　　　
catch----caught----caughtteach ---- taught ----taught
2. 動(dòng)詞原形中的e為o,變成過(guò)去式和過(guò)去分詞.
get----got----got sell----sold----sold tell----told----told

3. 動(dòng)詞原形中i為a, … sit----sat----satspit----spat----spat

4. 動(dòng)詞原形中i為o, …win----won----won shine----shone/ shined----shone/ shined
5. 動(dòng)詞原形中an為oo, … stand----stood---stood understand----understood----understood
6. 動(dòng)詞原形中的ay為ai,… say----said----saidpay----paid----paid
7. a）動(dòng)詞原形中的d為t,… send----sent----sent lend----lent----lent
spend----spent----spent build----built----built
b ) 動(dòng)詞原形最后一個(gè)字母改為t , …smell----smelt----smelt lose----lost----lost
c ) 動(dòng)詞原形后加一個(gè)字母t, …learn----learnt----learnt mean----meant----meant讀音/e/
d ) 動(dòng)詞原形中的ee去掉一個(gè)字母e, 然后在詞尾加t. 字母e發(fā)音/e/
feel----felt----felt sleep----slept----sleptsweep---swept----swept
keep---- kept----- kept
其它meet----met----met have----had----had hold----held----held
make----made----madedig----dug----dughear----heard----heard
find----found----found 　 hang----hung　----hung

C.原型與過(guò)去分詞相同
come----came----comerun----ran----run become----became----become
D. 原形,過(guò)去式, 和 過(guò)去分詞完全不同
1. 把動(dòng)詞原形中i改為a變成過(guò)去式,改成u變成過(guò)去分詞．
begin ---- began -----begun drink---drank----drunkring----rang-----rung
swim----swam----swum sing----sang----sung 　
2. 把動(dòng)詞原形中o改為e變成過(guò)去式,在原形詞尾加n變成過(guò)去分詞．
blow----blew----blown grow----grew----grown know---knew---known
throw ---- threw ---- thrown fly ----flew /flu:/ ----flown( 和以上相似)
3. 以下動(dòng)詞的過(guò)去分詞都以en結(jié)尾,故把它們分為一類．
a ) 把動(dòng)詞原形中i改為o變成過(guò)去式,在詞尾加n變成過(guò)去分詞．
drive----drove----driven rise---rose---risen write---wrote---written(雙寫t )
ride----rode----ridden(雙寫d )
b ) 把動(dòng)詞原形中ea改為o, 在詞尾加e變成過(guò)去式,在過(guò)去式后加n變成過(guò)去分詞．
speak----spoke----spokensteal----stole----stolen break----broke----broken
c ) 把動(dòng)詞原形中的個(gè)別字母或字母組合改為o變成過(guò)去式, 在過(guò)去式后加n變成過(guò)去分詞．
wake----woke----woken　　　freeze----froze----frozen
choose----chose----chosen　　forget----forgot----forgotten（雙寫t,加en ）
d) 其它過(guò)去分詞以en結(jié)尾的動(dòng)詞
eat----ate----eatenbeat---- beat ---- beatenfall----fell----fallen
give----gave----given see----saw----seentake----took----taken
mistake---- mistook----- mistaken hide----hid----hidden （雙寫d ）
E. 沒有過(guò)去分詞的動(dòng)詞
can ----- could －may---- might －shall---- should－ will ---- would －
其它
am, is ---- was----- beenare-----were----- been　　　do-----did----- done
draw-----drew----- drawn／ :／　　go-----went----- goneshow----showed----shown
wear--- wore ---- worn

不規(guī)則動(dòng)詞的過(guò)去式 （初二）
不規(guī)則動(dòng)詞的過(guò)去式是同學(xué)們學(xué)習(xí)的重點(diǎn),也是一個(gè)難點(diǎn).同學(xué)們應(yīng)通過(guò)不規(guī)則動(dòng)詞的動(dòng)詞原形和它們的過(guò)去式找出其變化規(guī)律,總結(jié)如下：
1. 把動(dòng)詞原形中的o改為a,變成過(guò)去式.過(guò)去分詞不變．如：
become—became, come—came
2．把動(dòng)詞原形中的i改為a,變成過(guò)去式.如：
begin—began,drink—drank,give—gave,ring—rang,sing—sang,sit—sat,swim—swam ,sink—sank,
3．把重讀開音節(jié)中的i改為o,變成過(guò)去式.如：
drive—drove,ride—rode,shine—shone,win—won,write—wrote
4．動(dòng)詞原形中的e改為o,變成過(guò)去式.如：
get—got,forget—forgot
5．動(dòng)詞原形中的eep改為ept,變成過(guò)去式.如：
keep—kept,sleep—slept,sweep—swept
6. 動(dòng)詞原形中的an改為oo,變成過(guò)去式.如：
stand—stood,understand—understood
7．改動(dòng)詞原形中的aw ／ow為ew,變成過(guò)去式.如：
draw—drew,grow—grew,know—knew,throw—threw（動(dòng)詞show除外,show—showed）
8．動(dòng)詞原形中的eak改為oke,變成過(guò)去式.如：
break—broke,speak—spoke
9．動(dòng)詞原形中的ell改為old,變成過(guò)去式.如：
sell—sold,tell—told
10．以ought和aught結(jié)尾,且讀音是［ :t］的過(guò)去式.如：
bring—brought,buy—bought,think—thought,catch—caught,teach—taught
11．以ould結(jié)尾且讀音為［ud］的情態(tài)動(dòng)詞過(guò)去式.如：
can—could,shall—should,will—would
12．在動(dòng)詞原形后加d或t變成過(guò)去式,并且發(fā)生音變.如：
hear［hi ］—heard［h :d］, say［sei］—said［sed］,
mean［mi:n］—meant［ment］, dream—dreamt ［dremt］
13．動(dòng)詞的過(guò)去式與動(dòng)詞原形一樣.如：
cut—cut, hit—hit, hurt—hurt, let—let,must—must,
put—put,read—read［red］,set—set
14. 動(dòng)詞的過(guò)去式有兩種形式.如：
　　dream—dreamed/ dreamtlearn—learnt/ learnedshine—shone/ shined
smell—smelt/ smelled wake—woke/ waked
15．不符合上述規(guī)律的動(dòng)詞過(guò)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