being done,have been done和having done怎么分辨
问题描述:
being done,have been done和having done怎么分辨
答
being done 被动式的进行时——表被动和正在进行
have been done 现在完成时的被动式——表被动和现在
having done 现在完成进行时 ——表主动和正在进行