having done的句子是什么时态的,

having done的句子是什么时态的, having done放句首的时候句子的时态 having been done是什么时态? 英语中having done是什么时态? having been done与done的区别是什么 having done的用法 having being done做伴随状语的情况是什么?having done ,being done等做伴随状语的情 being done having been done的区别 Having been done ,done的区别 having been done和done的区别 No sooner said than done这句子的动词是什么时态的 having been done和having done的区别