一、規(guī)則變化

　　1、 一般情況下，動詞詞尾加-ed, 如：work—worked play—played want—wanted ask—asked

　　2、 以不發(fā)音的-e結尾動詞，動詞詞尾加-d, 如：live—lived move—moved taste—tasted

　　3、 以“輔音字母+y”結尾的動詞，把y改成i, 加—ed, 如：study—studies try—tried copy—copied carry—carried

　　4、 重讀閉音節(jié)動詞，雙寫詞尾輔音字母，再加—ed, 如：stop—stopped

　　二、不規(guī)則變化

　　is am—was are—were do—did have has—had go—went meet—met come—came take—took steal—stole eat—ate fly—fliew run—ran see—saw say—said make—made find—found stand—stood

　　sit—sat sing—sang drink—drank give—gave ring—rang swim—swam

　　write—wrote ride—rode drive—drove

　　draw—drew grow—grew know—knew

　　get—got forget—forgot

　　sweep—swept keep—kept sleep—slept

　　speak—spoke break—broke

　　tell—told sell—sold

　　buy—bought think—thought catch—caught teach—taught build—built

　　can—could shall—should will—would

　　過去式與動詞原形一樣：let—let must—must put—put read—read