Usage of modal v 1. to indicate speakers tone and attitude 2. for subjunctive mood 虚拟语气 3. for speculation推测
Usage of modal v. 1. to indicate speaker’s tone and attitude 2. for subjunctive mood 虚拟语气 3. for speculation 推测
might,may, could, can, must/(G 情v+ⅴ原→ 对现在状态或经常动作推测 情ⅴ+ be doing→ 对此时此刻发生的动作行为推测 情ⅴ+ have done/ have been doing→ 对过去发生的事情进行推测 must的否定推测→cant/ couldn?t
might, may, could, can, must 情v.+v.原→ 对现在状态或经常动作推测 情v.+be doing → 对此时此刻发生的动作行为推测 情v.+have done/have been doing → 对过去发生的事情进行推测 must的否定推测→can’t / couldn’t
e She must be studying in the classroom now She must have been working then She may/might have been buying stamps in the post office when you saw her
▪She must be studying in the classroom now. ▪She must have been working then. ▪She may/might have been buying stamps in the post office when you saw her
You must be very tired, arent you 0 must have seen the film,口 haven't you? You must have seen the film last week, didnt you You must have known him before you wrote to him, hadnt you?
You must be very tired, aren’t you? You must have seen the film, haven’t you? You must have seen the film last week, didn’t you? You must have known him before you wrote to him, hadn't you?
It must have snowed last night, didnt it The old man must be our headmaster, isn't he Mary must have finished reading the novel now, hasnt she?
It must have snowed last night, ________? The old man must be our headmaster, ________? Mary must have finished reading the novel now, ________? didn’t it isn’t he hasn’t she