1、一般情况下,动词词尾加-ed,如:work—workedplay—playedwant—wantedask—asked
2、以不发音的-e结尾动词,动词词尾加-d,如:live—livedmove—movedtaste—tasted
3、以“辅音字母+y”结尾的动词,把y改成i,加—ed,如:study—studiestry—triedcopy—copiedcarry—carried
4、重读闭音节动词,双写词尾辅音字母,再加—ed,如:stop—stopped
第一,规则动词。这类动词过去式的变化规则是在动词原形后加-ed。例如:
play - played work - worked rain - rained
第二,不规则动词。这类动词的过去式变化需要逐个记忆,没有固定的规则。例如:
go - went have - had see - saw do - did
第三,以辅音字母加y结尾的动词。这类动词变化规则是将y改为i,再加-ed。例如:
study - studied carry - carried worry - worried
第四,但以元音字母加y结尾的动词,过去式仍按规则动词变化,直接加-ed。例如:
play - played stray - strayed
第五,以不发音的e结尾的动词,过去式也按规则动词变化。例如:
love - loved move - moved