动词词尾加ed规则

（1）大凡情况下，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 declinedhoped judged raised wiped

（3）以辅音字母+ y结尾的动词，把y变为i再加ed，如：studied tried copiedjustified cried carried embodied emptied

（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，如：stopped begged fretted dragged dropped planned dotted dripped（5）注：不规则动词的过去式变化规律性不强，须多加记忆。go - went，make- made，get - got，buy - bought，come - came，fly-flew，is/am-was，are-were，see-saw，bring-brought，do-did，teach-taught, think-thought,say-said,sit-sat. read-read, spend-spent,

eat-ate,give-gave,sit-sat,tell-told,write-wrote,feel-felt,find-found,hear-heard,know-knew,put-put,grow-grew,take-took,catch-caught,come-came,become-became,swim-swam，sweep—swept，sing—sang，draw—drew，

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