现在完成时的结构
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:英语作业 时间:2024/07/05 00:04:31
现在完成时的结构
![现在完成时的结构](/uploads/image/z/6663611-11-1.jpg?t=%E7%8E%B0%E5%9C%A8%E5%AE%8C%E6%88%90%E6%97%B6%E7%9A%84%E7%BB%93%E6%9E%84)
肯定句:have/has +v.(过去分词)
eg.I have already finished my homework .
否定句:have/has +not +v.(过去分词)
eg.I haven't heard from him yet.
一般疑问句:Have/Has+主语+v.(过去分词)
eg.Have you ever been to Beijing?
eg.I have already finished my homework .
否定句:have/has +not +v.(过去分词)
eg.I haven't heard from him yet.
一般疑问句:Have/Has+主语+v.(过去分词)
eg.Have you ever been to Beijing?