（一） AAA型，即原形、过去式和过去分词三者都相同。(共9个)costcostcostcutcutcuthithithithurthurthurtletletletputputputreadreadreadsetsetsetshutshutshut（二）ABB型，即过去式、过去分词相同。(共41个)1过去式和过去分词都含有-ought。(3个)bringbroughtbroughtbuyboughtboughtthinkthoughtthought2词尾有-ild，-end时，只需把d变为t。(4个)buildbuiltbuiltlendlentlentsendsentsentspendspentspent3过去式、过去分词都含有-aught。(2个)catchcaughtcaughtteachtaughttaught4把-eep变为-ept。(3个)keepkeptkeptsleepsleptsleptsweepsweptswept5把-ell变为-old。(2个)telltoldtoldsellsoldsold6过去式、过去分词都含有-elt或-ilt。(4个)smellsmeltsmeltspellspeltspeltfeelfeltfeltspillspiltspilt7过去式、过去分词都在原形词尾加t。(3个)learnlearntlearntmeanmeantmeantspoilspoiltspoilt8过去式、过去分词词尾是d。(4个)saysaidsaidpaypaidpaidlaylaidlaidhearheardheard9改变元音字母。(11个)meetmetmetgetgotgotsitsatsatfindfoundfoundholdheldheldspitspatspatshineshoneshonewinwonwonhanghunghungdigdugdugloselostlost10改变辅音字母。(1个)makemademade11改变元、辅音字母。(4个)leaveleftleftstandstoodstoodhave(has)hadhadunderstandunderstoodunderstood（三）ABC型，即原形、过去式、过去分词都不相同。(共35个)1iau变化。(6个)beginbeganbegundrinkdrankdrunksingsangsungringrangrungswimswamswumsinksanksunk2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。(5个)blowblewblowndrawdrewdrawngrowgrewgrownknowknewknownthrowthrewthrown(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n，若那个辅音字母为d或t，须双写d或t后加n。(4个)(give，hide除外)drivedrovedrivenwritewrotewrittenrideroderiddenriseroserisen4过去分词在过去式后加(e)n。(5个)breakbrokebrokenchoosechosechosenfreezefrozefrozenspeakspokespokenwakewokewoken5过去分词由过去式加-ten构成。(1个)forgetforgotforgotten6过去分词由原形加(e)n构成。(6个)bewas(were)beeneatateeatenfallfellfallengivegavegivenseesawseenhidehidhidden(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。(2个)taketooktakenmistakemistookmistaken8原形、过去式和过去分词都不相同。(6个)dodiddoneflyflewflowngowentgonelielaylainshowshowedshownwearworeworn（四）AAB型，即过去式和原形相同。(1个)beatbeatbeaten（五）ABA型，即过去分词和原形相同。(3个)comecamecomebecomebecamebecomerunranrun（六）情态动词型，只有原形和过去式，没有过去分词。(4个)cancouldmaymightwillwouldshallshould7实 用 文 档