am,is-wasare-werebecome-bucamebegin-beganbring-brought

　　buy-boughtcatch-caughtcome-camedo-dideat-atefeel-felt

　　get-gotgo-wentrun-ransay-saidsee-sawtade-tooktell-told

　　1.直接在动词后加ed,例如：look---looked.play---played.2.以字母e结尾的单词直接加d,例如：live---lived.hope---hoped.3.以辅音加y结尾的变y为i,再加ed.例如：study---studied.4．词尾只有一个辅音字母的重读闭音节尾的动词,双写最后一个辅音字母再加ed.例如：stop---stopped.5．不规则变化动词．例如：do---did.没了:p