We have seen young children piaying together.变为被动语态

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/21 11:45:16

Young children have been seen playing together by us.
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再问：为什么呢，帮忙解释一下
再答：原句的主语变成宾格，再加上by，就变成了宾语。放在句子的末尾。
再问：那为什么用have been seen 呢，而不是were seen
再答：主动句变被动句，时态不用变。
再问：原句是have seen 为什么改后是have been seen
再答：因为have seen是主动语态，与之对应的的被动形式是have been seen 现在完成时里，主动变被动都这么变，中间加个been就行了如果您认可我的答案，请点击下面的“选为满意回答”按钮，谢谢！

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