He said educational exchanges can provided an added boost to the U.S.economy.can以后的用法,是虚拟语气吗?能不能讲讲情态

题目

He said educational exchanges can provided an added boost to the U.S.economy.can以后的用法,是虚拟语气吗?能不能讲讲情态动词的虚拟语气呢?

答案

不是虚拟语气,另：请认真查本句出处,笔者怀疑本句有误虚拟语气：现在时：从句：主+were（实义动词用过去时）；主句：主+should＼would＼might＼could+do过去时：从句：主+had done；主句：主+should＼would＼might＼...