一般在動(dòng)詞原形末尾加-ed：
play——played clean——cleaned visit——visited
ask——asked watch——watched stay——stayed
cook——cooked help——helped walk——walked
look——looked start——started enjoy——enjoyed
rain——rained
結(jié)尾是e的動(dòng)詞加-d：
live——lived hope——hoped use——used
practice——practiced dance——danced
末尾只有一個(gè)輔音字母的重讀閉音節(jié)詞,先雙寫這個(gè)輔音字母,再加-ed：
stop——stopped plan——planned
以輔音字母加y結(jié)尾的動(dòng)詞,先變“y”為“i”,再加-ed：
study——studied carry——carried worry——worried