条件状语从句和主句都是助动词过去分词的情况,是虚拟语气还是都是表猜测
but if they could have seen what happened in that valley after they had gone, I think they might have been surprised
谢谢老师回答!
刘老师:
本句表达了与过去事实不符的虚拟语气,不表示推测。
一个句子表示虚拟还是推测,情态动词不是关键,关键看条件句表达的意义是否与事实情况一致。表推测的句子一般不跟条件句连用。
I think 视为插入语,是说话人的一种看法,它的有无不影响句意。