to be done 和having been done的用法

to be done 和having been done的用法 to have done,to be done,to have been done,having done在用法上有什么 having been done和done的区别 have been done与be done的区别和用法 having been done 和 done being done 和 be doing ;done ；doing ; be done ;to be done 的用法 to have been done 和having been done have been done 和 to be done 非谓语动词用法to have done/having done/to have been done/having bee having been done 与 have been done 的区别和用法?求大神帮助 having been done和having done的区别 关于having been done 和 have been done的区别