过去式和过去分词:hold,speed,sweep,swing,lean,kneel,sink,spring...答:hold-held held ,speed sped sped ,sweep swept swept ,swing swang swang ,lean leaned leaned ,kneel knelt knelt ,sink sank sunk ,spring spang spung ,sew sewed sewed ,shake shoke shaken ,may might might
常见不规则动词的过去式答:14.动词的过去式与动词原形一样。如:let—let,must—must,put—put,read—read〔red〕15.不符合上述规律的动词过去式。如:am,is—was,are—were,build—built,do—did,eat—ate,fall—fell,feel—felt,find—found,fly—flew,go—went,have/has—had,hold—held,leave—left,make—made,may—might,run—...