must have done
问题描述:
must have done
must have done 的用法详细说明.
可以归结为虚拟语气里面的么?
must have been down 是must have down 的被动语态么
答
Must have done 表对过去的推测.
Must have been done 表对过去的被动推测.
例句,She must have loved deeply,so she was so hurt.她一定曾经爱的深,才会如此受伤.
She must have been loved too,so she didn't have any regrets.她一定被爱过,所以她无憾.