1.规则动词在其原形后面加-ed: to work-worked 2.以字母e结尾的规则动词,只加-d: to love---loved 3.动词为单音节,以一个元音字母和一个辅音字母结尾 辅音字母双写, 再加-ed Stop-stoppedAdmit—admitted 4.以y结尾的动词,在y 前为辅音字母时 Y 变为 I ,加 – ed Carry –carriedHurry –hurried 5.以y 结尾的动词,在y 前为元音字母时 加—ed Obey—obeyedEnjoy---enjoyed