you would have stayed with her .和 you could have stayed with her .
---- I stayed at a hotel while in New York.
---- Oh,did you You _______ with Barbara.
A.could have stayed
B.could stay C.would stay D.must have stayed
請(qǐng)問,這里用would have stayed是否可以.
could have stayed 和 would have stayed
此句是虛擬語氣用法，表示推斷某人在某時(shí)做過某事。他會(huì)說：“You can stay with her.”不是說：“you will stay with her”。因?yàn)槭沁^去發(fā)生的，用了過去式：have stayed.can 使用了虛擬語氣could.而情態(tài)動(dòng)詞不接過去式，表過去只能接現(xiàn)在完成時(shí)或者過去完成時(shí)。所以，只能接:You could have stayed with her.表推斷。
但是，為什么不接:You could had stayed with her.表示實(shí)際上對(duì)話人并沒有在過去訪問New York的時(shí)候和Barbara在一起呢？
實(shí)際上，主人公在訪問New York的時(shí)候是否和Barbara在一起？而提問的人是否知道他們?cè)谝黄鹉?？提問者不知道主人公去過New York，不知道他們是否在一起。所以，只能推斷、假設(shè)他們可以(can)在一起的。