the answer can't be right .反义疑问句是什么?

问题描述:

the answer can't be right .反义疑问句是什么?

Is it?
当can表猜测时 前面是肯定后面用 be动词否定形式或者助动词否定形式+主语.反之亦然.
如 It can be right,isn't it?It can happen soon,doesn't it?