I should have known better是虚拟语气还是过去将来完成时?I have witnessed similar treatment of my family and friends ,so I know what it is like ,and I should have known better.
问题描述：
I should have known better是虚拟语气还是过去将来完成时?
I have witnessed similar treatment of my family and friends ,so I know what it is like ,and I should have known better.
答
我觉得是过去将来完成时。
意为，我知道将来它会变得更好。如果翻译成虚拟语气，则是我本应该知道它会变得更好，似乎句子不通顺。
答
虚拟语气吧
答
should have +过去分词 意为“原本应该做某事”,是虚拟语气