英语语法,having done 是什么语法来

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/23 23:04:23

having done 是非谓语动词中现在分词的完成式.与现在分词一般式doing 相比,doing表示的动作或状态往往与句子谓语动词表示的动作或状态同时发生,而having done 强调在谓语动词之前发生.having done 通常在句中作状语,表示句子主语发生的动作或存在的状态,与主语是主动关系.例句:①Having worked there for 30 years, Haydn moved to London.②Having promised to stay with my mother, I didn’t accept the invitation to the party.(2) having done 作状语,可以变成相应的完成时的状语从句.比如上两句可分别变为:①After he had worked there for 30 years, Haydn moved to London.②Because I had promised to stay with my mother, I didn’t accept the invitation to the party.(3) having done 的被动式为:having been done, 与句子主语之间是被动关系.例句:Having been discussed for many times, the problem remained unsolved.该句同样可变为:Although it had been discussed for many times, the problem remained unsolved

英语语法,having done 是什么语法来 having been done英语语法考验, 这个是哪种英语语法?having been done 是哪种类型的语法?什么时态语法问题having done 和done 关于having been done这个语法 having been done是什么时态? 英语语法中being done ,having been done,having done都在什么情况下出现和使用? 高中英语语法非谓语动词being done和done以及having being done的区别英语 having done 是什么结构啊 having done的句子是什么时态的, 英语中having done是什么时态? having been done与done的区别是什么