Must 用于肯定陈述句,表示肯定推测;can, could用于疑问或否定陈述句,表示可能性推测;may, might用于陈述句,表示可能性推测;用于否定陈述句中,can’t (不可能)的语气比may not(可能不)强。此外,还要注意有对过去和对现在两种情况的推测,对过去推测用情态动词+have done...
(之前我们做过can have done用法小结,can have done表推测时都是对过去进行推测,但是may have done不仅可以推测过去) may/might have done 推测现在 “may/might+动词的完成式”表示对...
have 句型1 have sb./ sth. do sth. Let’s have them stand facing the wall. 句型2 have sb./ sth. doing We had the fire burning all night. I won’t have you talking to your dad like that! 句型3 have sb./ sth. done I will have my radio fixed. He had hi...
更多内容请点击：高考英语二轮复习知识点:情态动词和虚拟语气