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1、不规则动词的过去式和过去分词变化规则表1：1、AAA型，即原形、过去式和过去分词三者都相同。costcostcost cutcutcut hithithit hurthurthurt letletlet putputput readreadread 2、ABB型，即过去式、过去分词相同。 1)过去式和过去分词都含有 -ought。bringbroughtbrought buyboughtbought thinkthoughtthought fight-fought-fought 2) 词尾有-ild，-end时，只需把d变为t。 buildbuiltbuilt lendlent lent se
2、ndsentsent spendspent spent 3) 过去式、过去分词都含有 -aught。catchcaughtcaught teachtaughttaught 4) 把-eep变为-ept。 keepkeptkept sleepsleptslept sweep sweptswept 5) 把-ell变为-old。 telltoldtold sellsoldsold 6) 过去式、过去分词都含有-elt或-ilt。 smellsmeltsmelt spellspeltspelt feelfeltfelt 7) 过去式、过去分词都在原形词尾加t。 learnlearntlearnt m
3、eanmeantmeant 8) 过去式、过去分词词尾去y变-id。saysaidsaid paypaidpaid laylaidlaid hearheardheard 9) 改变元音字母。meetmetmet getgotgot sitsatsat findfoundfound holdheldheld shineshoneshone winwonwon hanghunghung loselostlost 10) 改变辅音字母。 makemademade 11) 改变元、辅音字母。leaveleftleft standstoodstood have(has)hadhad understand
4、understoodunderstood 3、ABC型，即原形、过去式、过去分词都不相同。1)原形、过去式和过去分词都不相同。bewasbeen dodiddone flyflewflown gowentgone lielaylain showshowedshown wearworeworn 2)词尾为-ow，-aw时，过去式将其变为-ew，过去分词在其原形后加n。blowblewblown drawdrewdrawn grow grewgrown knowknewknown throwthrewthrown（show除外） 3)词尾为“i辅（1个）e”，过去式将i变为o，过去分词多在原形后加
5、n，若那个辅音字母为d或t，须双写d或t后加n。（give，hide除外） drivedrovedriven writewrotewritten ride roderidden riseroserisenarisearosearisen4)过去分词在过去式后加（e）n。 breakbrokebroken choosechosechosen freezefrozefrozen speakspokespoken wakewokewoken 5)过去分词由过去式加-ten构成。forgetforgotforgotten 6)过去分词由原形加（e）n构成。bewas（were）been eatatee
6、aten fallfellfallen givegavegiven seesawseen hidehidhidden（hid） 7)词尾为-ake时，过去式将其变为-ook，过去分词在原形词后加-n。taketooktaken mistakemistookmistaken 8)iau变化。beginbeganbegun drinkdrankdrunk sing sangsung ringrangrung swimswamswum sink sanksunk4、ABA型，即过去分词和原形相同。comecamecome becomebecamebecome runranrun 5、情态动词型，只有
7、原形和过去式，没有过去分词。cancould maymight willwould shallshould 不规则动词的过去分词变化规则表2： (1) AAA型（动词原形、过去式、过去分词同形） cost costcost cutcut cut hit hithit hurt hurt hurt let let let putputput read read read (2) AAB型（动词原形与过去式同形） beat beat beaten (3) ABA型（动词原形与过去分词同形） become became become come came come run ran run (4) AB
8、B型（过去式与过去分词同形） dig dug dug get got got hang hanged hanged hang hung hung hold held held shine shone shone sit sat sat win won won meet met met keep kept kept sleep slept slept sweep swept swept feel felt felt smell smelt smelt leave left left build built built lend lent lent send sent sent spend spe
9、nt spent lose lost lost burn burnt burnt learn learnt learnt mean meant meant catch caught caught teach taught taught bring brought brought fight fought fought buy bought bought think thought thought hear heard heard sell sold sold tell told told say said said find found found have/has had had make
10、made made stand stood stood understand understood understood (5) ABC型（动词原形、过去式与过去分词三者不同形） begin began begun drink drank drunk ring rang rung sing sang sung swim swam swum blow blew blown draw drew drawn fly flew flown grow grew grown know knew known throw threw thrown show showed shown break broke b
11、roken choose chose chosen forget forgot forgotten (forgot) speak spoke spoken wake woke woke drive drove driven eat ate eaten fall fell fallen give gave given rise rose risen take took taken mistake mistook mistaken ride rode ridden write wrote written do did done go went gone lie lay lain see saw seen wear wore worn be ( am, is, are )was, were been
