推荐回答（1个）
反身代词的位置与其它代词做宾语时的位置相同。
它的粗略原则是：
1. 在正语序中（主语在谓语动词前）： sich在动词后。
例如： Er kümmert sich um seinen alten Vater.
2, 在反语序中（主语在谓语动词后）与从句中：
如果主语是代词，sich在主语后，如果主语是名词，sich在主语前。
例如：Wie lange hat er sich um seinen alten Vater gekümmert?
Wie lange hat sich ihr Mann um seinen alten Vater gekümmert?
Ich weiß, dass er sich um seinen alten Vater kümmern muss.
Ich weiß, dass sich ihr Mann um seinen alten Vater kümmern muss.
真反身动词的sich 是不可省略的。这些动词需在学习中记忆。其它使用sich的动词，所谓假反身动词，按句子的需要使用sich。好像是省略了，其实是句子含义就不需要。
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