有can't be那么有没有mustn't be 和may not be

有can't be那么有没有mustn't be 和may not be can‘t be must’t be区别我知道can't be是表示坚决的否定,但有没有mustn't be这么一说?如果没有,那么表推测的否定只有一种啦? 存在can be/must be ,can’t be 而没有mustn't be can't be 和 must’t be有什么区别?比如，he can't be here.he mustn;t be here 有什么区别？ can't和mustn't有什么区别请详解 can't和mustn't有什么区别? 情态动词mustn't和can't有什么区别? 有没有这个说法:I mustn't have been a doctor.可以说mustn't`````吗? can‘t be 和mustn’t be的用法 区别几个英语短语it can'tbeit mustn't beit couldn't beit won't beit shouldn't be这几个有什么区别 有没有mustn't的形式,什么意思 mayn't be ,can't be,mustn't be,shouldn't be的区别 may.must.mustn't的意思may,must,mustn't,need,needn't,can,can't的意思是什么?之间有什么区别? This book ___ Lucy's.Tom's name is on its cover.A.can't be B.mustn't be C.may not be选啥,还有一个辨析的may be not 与may not be 有区别吗 mustn't have done和can't have done的区别最好有例子 may的否定回答mustn't和can't有什么区别 must not 和mustn't有什么区别?还有can't和can not有什么区别? There __________tiny,hidden computers in your home that you don't realize.A.maybe B.may be C.mustn't D.can be 麻烦大家说下maybe和may be 有冇区别啊~