求when done if done 表示条件区别?

求when done if done 表示条件区别? had done.when launch when done 求complete、done、finish的区别 being done having been done的区别 done 和being done的区别 had been done had done区别 have done和had done的区别 had been done & having been done 区别 to being done 与 being done 区别 Well done 和done well的区别 have done 和 has done 的区别