1.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—swam2.把重读开音节中的i改为o,变成过去式。如:drive—drove,ride—rode,write—wrote3.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)4.动词原形中的e改为o,变成过去式。如:get—got,forget—forgot5.动词原形中的ee改为e,变成过去式。如:feed—fed,meet—met6.动词原形中的eep改为ept,变成过去式。如:keep—kept,sleep—slept,sweep—swept7.动词原形中的eak改为oke,变成过去式。如:break—broke,speak—spoke8.动词原形中的ell改为old,变成过去式。如:sell—sold,tell—told9.动词原形中的an改为oo,变成过去式。如:stand—stood,understand—understood10.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—taught11.以ould结尾且读音为[ud]的情态动词过去式。如:can—could,shall—should,will—would12.把动词原形中的o改为a,变成过去式。如:come—came,become—became13.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]14.动词的过去式与动词原形一样。如:let—let,must—must,put—put,read—read[red]15.不符合上述规律的动词过去式。如:不规则动词过去式和过去分词A.原型,过去式,和过去分词完全不同drink---drank----drunkring----rang-----rungswim----swam----swumsing----sang----sungsink----sank----sunkblow----blew----blowngrow----grew----grownknow---knew---knownfly----flew----flowntake----took----takenshake----shook----shakendrive----drove----drivenwrite---wrote---writtenrise---rose---risenride----rode----riddenspeak----spoke----spokensteal----stole----stolenbreak----broke----brokenwake----woke----wokenfreeze----froze----frozenforget----forgot----forgottenchoose----chose----chosendraw----drew----drawneat----ate----eatenfall----fell----fallengive----gave----givenhide----hid----hiddensee----saw----seendo----did----doneB.过去式与过去分词完全相同bright----brought----broughtthink----thought----thoughtfight----fought----foughtbuy----bought----boughtcatch----caught----caughtsell----sold----soldtell----told----toldsay----said----saidpay----paid----paidsend----sent----sentlend----lent----lentspend----spent----spentburn----burnt----burntlearn----learnt----learntmean----meant----meantfeel----felt----feltsmell----smelt----smeltsleep----slept----sleptsweep---slept----sleptleave----left----leftbuild----built----builtlose----lost----lostget----got----gotmeet----met----metsit----sat----satshoot----shot----shotlead----led----ledspit----spat----spathave----had----hadhold----held----heldmake----made----madestand----stood---stoodhear----heard----heardfind----found----founddig----dug----dugshine----shone----shoneunderstand----understood----understoodwin----won----wonC.原型与过去分词相同come----came----comerun----ran----runbecome----became----becomeD.原形与过去式和过去分词完全相同cast----cast----castcut----cut----cutput----put----putlet----let----letset----set----sethit----hit----hitshut----shut----shuthang----hung----hung吊,挂lie---lied---lied说谎lie---lay---lain躺下,位于,平放hanged----hanged处绞刑lay---laid---laid置放。