Should have pp是什么意思?我可以只说should ?
母语人士的回答
Rebecca
Should have pp是用于表达过去的错误或失败的表达式,因为它意味着您应该对未发生的过去做过〜。 Should have pp到p 。过去的部分总是位于p位置。因此,在这里,仅使用should在语义和语法上是不正确的。例子: You should eat something before you go to school. ( You should have eaten something before you went to school. (我应该在上学之前先吃点东西。)