have been,,has been,,had been,,主格,,宾格,,各是什么意思???答:He has gone to work. 他已去上班了.(主动)He has been arrested.他被逮捕了.(被动)had been 是过去完成时,即过去完成过什么动作,做过这件事 I had been a good student 我过去曾经是一个好学生 had been也可用在虚拟语气中,表示假设,比如说 if I could go to school, I had been ...