动词变单三的规则

/7动词变单三的规则：一般的动词在词尾加s.work—works,readreads以s,x,ch,sh,及辅音字母+o结尾的单词在词尾加es.Watchwatches,dodoes.以辅音字母加y结尾的动词变y为i，再加es.flyflies.4•以元音字母加y结尾的动词直接在词尾加一s.playplays5.不规则变化。如：havehas动词变现在分词（ing）的规则：1•一般情况在词尾加ing•如：workworking.2•以不发音字母e结尾的，去e再加一ing•如：taketaking,makemaking.以重读闭音节结尾且末尾只有一个辅音字母的，要双写末尾的辅音字母再加—ing.如:swimswimming,runrunning.4•以字母ie结尾的动词，将ie变为y再加ing。如：diedying.动词过去式变化规则：一般在动词末尾加-ed，如：pull-pulled,cook-cooked结尾是e加d,如：taste-tasted3．末尾只有一个元音字母和一个辅音字母的重读闭音节，应双写末尾的辅音字母，再加-ed,如：stop-stopped4.以“辅音字母+y〃结尾的，变y为i,再加-ed，如：study-studiedAB型cancouldshallshouldwillwouldmaymightAAA型costcostcostcutcutcuthithithithurthurthurtletletletmustmustmustputputputsetsetsetshutshutshutreadreadreadAAB型beatbeatbeatenABA型ABB型bringbroughtbroughtbuyboughtboughtthinkthoughtthoughtcatchcaughtcaughtteachtaughttaughtbuildbuiltbuiltlendlentlentsendsentsentspendspentspentdigdugdughanghunghungfeelfeltfeltkeepkeptkeptsleepsleptsleptsweepsweptsweptleaveleftleftsmellsmeltsmeltspillspiltspiltlaylaidlaidpaypaidpaidsaysaidsaidsellsoldsoldtelltoldtoldsitsatsatspitspatspatstandstoodstoodunderstandunderstoodunderstoodlearnlearntlearntmeanmeantmeantspoilspoiltspoiltshineshoneshonewinwonwonhavehadhadmakemademadehearheardheardfindfoundfoundholdheldheldABC型beginbeganbegundrinkdrankdrunkringrangrungsingsangsungsinksanksunkswimswamswumblowblewblownflyflewflowngrowgrewgrownknowknewknownthrowthrewthrowndrawdrewdrawnshowshowedshownbreakbrokebrokenchoosechosechosenforgetforgotforgottenfreezefrozefrozenspeakspokespokenwakewokewokendrivedrovedriveneatateeatenfallfellfallengivegavegivenhidehidhiddenrideroderiddenriseroserisentaketooktakenmistakemistookmistakenwritewrotewrittenam/iswasbeenarewerebeendodiddonegowentgonelielaylainseesawseenwearworewornxx型showedshowndrawdrewdrawnfallfellfallenfeelfeltholdheldhelpedhelpedthinkthoughtthankedthankedtaketooktakentalkedtalkedgetgotforgetforgottenmeetmetmeantmeanthithithidehiddenringrangrungbringbroughteateeatenbeatbeatenlielaylainlaylaidfindfoundfoundedfoundedbuyboughtbringbroughtlearntlearntheardheard5．过去式和过去分词有两种形式（以下全是ABB）bu