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— wanted work— worked need— needed clean— cleaned wash— washed play— played spell— spelled help--helped 2
以不发音的 e 结尾的在词尾加 -d like — liked live— lived use— used move— moved hope— hoped dance— danced 3
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-ed stop — stopped, trip— tripped 4
以辅音字母加 y 结尾的动词,先把y 变成 i ,再加 -ed study — studied carry— carried hurry— hurried marry— married copy— copied cry— 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 — put let— let cut— cut beat— beat 2
以 d 结尾的词,把 d 变成 t
build — built lend— lent send— sent spend— spent 3
以 n 结尾的词,在词后加t
mean— meant burn— burnt learn— learnt 4
以 ow / aw 结尾的词,把 ow / aw 变成 ew
blow— blew draw— drew know— knew grow— grew 5
含有双写字母的词,将双写改为单写,在词尾加t
keep— kept sleep— slept feel— felt smell— smel