1、一般情况下,动词词尾加 -ed ,如：worked played wanted acted 2、以不发音的 -e 结尾动词,动词词尾加 -d,如：lived moved decided declined hoped judged3、 以辅音字母 + y结尾的动词,把-y变为-i 再加-ed,如：studied tried copied justified cried 4、以一个辅音字母局掘结尾的重读闭禅答音节动词,双写贺腊慧词尾辅音字母,再加 -ed,如：stopped begged fretted dragged dropped planned dotted dripped 5、另外还有个别动词的过去式比较特殊,需着重记忆：go - went make - made get - got buy - bought come - came fly-flew
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