having been done是什么时态?

having been done是什么时态? Having been 是什么时态 having done的句子是什么时态的, 英语中having done是什么时态? Having been done ,done,having done having been done与done的区别是什么 having been done 和 done have been done 是什么时态?那have done呢? had been done & having been done 区别 what done has been done has been done?在说说他的结构是什么时态? 动词+to have/having been done 是什么用法? doing having done being done having been done 造句!