She was supposed to have graduated from college two years ago 请问这里为什么用 to have graduated
问题描述：
She was supposed to have graduated from college two years ago 请问这里为什么用 to have graduated
答
这是不定式的完成式,当不定式这个动作发生在主句谓语动词之前就要用完成式.这里是说“毕业这件事发生在说这句话之前”.
【英语牛人团】高人 能再进一步解释一下吗， GRADUATE 发生在SUPPOSE之前》？ 那该怎么翻译be supposed to do sth: 应该【译文】她两年前就应该大学毕业了。言外之意，两年前就应该毕业，但是讲这句话的时候她却还没毕业。这句话这样理解可能更好理was supposed to have graduated...相当于：should have graduated...表示本应该。。。但是实际上没有。类似的句子：I could have lent you the money but I bought a car yesterday.我本来是能借给你这笔钱的，可是我昨天刚买了辆车。（没钱借给你了）