规则动词的过去式变化如下: 1、一般情况下,动词词尾加 -ed ,如: work ---worked play---played wanted----wanted act----acted 2、以不发音的 -e 结尾动词,动词词尾加 -d,如: live---lived move----moved taste---tasted hope---hoped 3、以辅音字母 + y结尾的动词,把-y变为-i 再加-ed,如: study---studied copy---copied cry---cried carry---carried 4、以一个辅音字母结尾的重读闭音节动词,双写词尾辅音字母,再加 -ed,如: stop ---stopped 5、不规则动词的过去式变化规律性不强,须多加记忆。 go – went make – made get – got buy - bought come - came fly-flew 不规则动词的过去式的构成 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—swam 2.把重读开音节中的i改为o,变成过去式。如: drive—drove,ride—rode,write—wrote 3.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—forgot 5.动词原形中的ee改为e,变成过去式。如: feed—fed,meet—met 6.动词原形中的eep改为ept,变成过去式。如: keep—kept,sleep—slept,sweep—swept 7.动词原形中的eak改为oke,变成过去式。如: break—broke,speak—spoke 8.动词原形中的ell改为old,变成过去式。如: sell—sold,tell—told 9.动词原形中的an改为oo,变成过去式。如: stand—stood,understand—understood 10.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—taught 11.以ould结尾且读音为〔ud〕的情态动词过去式。如: can—could,shall—should,will—would 12.把动词原形中的o改为a,变成过去式。如: come—came,become—became 13.在动词原形后加d或t变成过去式,并且发生音变。如: 本文来源:https://www.wddqw.com/doc/529321c9915f804d2a16c136.html