动词过去式的变化规则一、规则动词的过去式1
动词原形+-ed（大部分动词）want—wantedwork—workedneed—neededclean—cleanedwash—washedplay—playedspell—spelledhelp--helped2
以不发音的e结尾的在词尾加-dlike—likedlive—liveduse—usedmove—movedhope—hopeddance—danced3
以一个元音字母（A/E/I/O/U）加一个辅音字母结尾的重读闭音节动词，先双写结尾的辅音字母，再加-edstop—stopped,trip—tripped4
以辅音字母加y结尾的动词，先把y变成i，再加-edstudy—studiedcarry—carriedhurry—hurriedmarry—marriedcopy—copiedcry—cried二、不规则动词的过去式1
以t结尾的词，过去式与原形相同
put—putlet—letcut—cutbeat—beat2
以d结尾的词，把d变成t
build—builtlend—lentsend—sentspend—spent3
以n结尾的词，在词后加t
mean—meantburn—burntlearn—learnt4
以ow/aw结尾的词，把ow/aw变成ew
blow—blewdraw—drewknow—knewgrow—grew5
含有双写字母的词，将双写改为单写，在词尾加t
keep—keptsleep—sleptfeel—feltsmell—smelt6
含有元音字母o/i的词，将o/i变成a
sing—sanggive—gavesit—satdrink—drank
我们目前已学动词的过去式词义原型过去式词义原型过去式am/iswas有havehadarewere听见he
