you have done for us.have done是什么

what you have done for us.have We ()()()非常满意 what you have done for us what you have done for me.这是什么句啊? I could have done anything for you . have you done anything for it what have you done for your parents should have done中的have done 是什么? What have you done? have+done是什么时态? have done是什么时态 what have you done是什么时态 All ___they have done is good for us.