动词变过去式的法则.简明一点.

1、一般在动词原形末尾加–ed
look looked play played start started
2、结尾是 e 的动词加 -- d
live lived hope hoped use used
3、末尾只有一个辅音字母的重读闭音节词,先双写这 个辅音字母,再加—ed
stop stopped plan planned trip tripped
4、结尾是“辅音字母+y”的动词,先变“y”为“i”再加—ed
study studied carry carried
说明：1、清念 /t/ ,即 ed 在清辅音后面念 /t/ ,例：finished helped passed cooked
2、元浊 /d/ ,即 ed 在元音,浊辅音后面念 /d/ ,例：borrowed enjoyed called moved
3、/t/ /d/ 之后念 /id/ ,即 ed 在 /t/ /d/ 音后面念 /id/ 例：wanted shouted needed counted