"-We haven't seen each other for a while,have we?-No we haven't''中的语法点是什么?

问题描述:

"-We haven't seen each other for a while,have we?-No we haven't''中的语法点是什么?
能不能再详细一点儿啊?有好几种模式的吧?

"-We haven't seen each other for a while,have we?-No we haven't''
1.完成时.for a while是一个时间段,所以要用现在完成时have done...
2.反义疑问句,我们很久没见到彼此了,不是吗?回答是:是啊,我们很久没见了
前面否定,疑问就用肯定.回答要一致