have/has been doing否定形式

来源：学生作业帮编辑：搜搜考试网作业帮分类：英语作业时间：2024/06/05 15:34:21

have/has been doing否定形式
是“They don't have been seeing each other these days.”
是“They haven't been seeing each other these days.”
Have you been learning English for ten years?
是 No,I have't.
还是 No,I don't.
是 It is necessary of us to help others when they are in trouble.
还是 It is necessary for us to help others when they are in trouble.

是“They don't have been seeing each other these days.”
是 No,I have't.
还是 It is necessary for us to help others when they are in trouble.

have/has been doing否定形式 has been doing have been done区别 have been的否定形式 i has been doing 还是i have been doing have /has been doing 是什么句型啊 have /has been doing 是什么时态 have(has) been doing sth 造句写翻译 Have/has been 后一定要加doing sth.吗? He has been doing Have/Has否定句的形式一般疑问句的形式过去现在时 have /has been doing和have/ has +过去分词的区别 have/has+been doing 与has/have+过去分词的区别