1.一般情况下,动词词尾加-ed。e.g.work-worked play-played want-wanted act-acted
2.以不发音的e结尾动词,动词词尾加-d。e.g.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。e.g.study-studied copy-copied cry-cried
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。e.g.stop-stopped
1.动词原形以辅音/t/或/d/结尾时,ed发/id/音。e.g.want→wanted need→needed
2.动词原形是以清辅音/p//k//f//tʃ//ʃ/结尾时,ed发/t/。e.g.help→helped laugh→laughed look→looked kiss→kissed wash→washed watch→watched
3.动词原形是以元音或浊辅音/l//v//n//z/结尾时,ed发/d/音。e.g.call→called stay→stayed cry→cried