高考英语作文句型：情态动词+动词不定式

might have done “本来可能……;本来应该或可以做某事”实际没有发生;含有轻微的责备语气。should/ought to have done “本来该做某事”而实际未做should not/ought not to have done “本来不该做”实际却做过了，含有责备语气needn’t have done “本来不必做”但是已经做过了would rather have done “当时宁愿做了某事”实际没有做过;否定式would rather not have done表达相反意思，两者都有表示“后悔”之意。详细请查看:天星学堂：高考作文频道：