can be seen 和 can been seen 的区别?

来源：学生作业帮编辑：大师作文网作业帮分类：英语作业时间：2024/09/30 19:32:29

can be seen被看见
can been seen 恕我直言,can作为情态动词后面必须是动词原型.
been 一般跟在have , has ,had 等完成时态后面.
再问：谢谢您（以及以下各楼）。我在这里看到一个提问： http://zhidao.baidu.com/question/511523248.html 我想知道，是否能说，这个题目本身就是错的；还是说，这个句式有其他的理解途径？
再答：这种是特殊情况，省略了have，表示虚拟语气，意思可说是到处可见。

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