（1）一般情況下,動(dòng)詞詞尾加 ed ,如：worked played wanted acted
（2）以不發(fā)音的 e 結(jié)尾動(dòng)詞,動(dòng)詞詞尾加 d,如：lived moved decided declined hoped judged raised wiped
（3）以輔音字母 + y結(jié)尾的動(dòng)詞,把y變?yōu)閕 再加ed,如：studied tried copied justified cried carried embodied emptied
（4）以一個(gè)輔音字母結(jié)尾的重讀閉音節(jié)動(dòng)詞,雙寫詞尾輔音字母,再加 ed,如：stopped begged fretted dragged dropped planned dotted dripped
（5）注：不規(guī)則動(dòng)詞的過去式變化規(guī)律性不強(qiáng),須多加記憶.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,