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I want to say "In my house or your house" in German:

In meinem Haus oder deinem Haus

I want to know how it was found that the dative declensions where the correct to use. It is difficult for me as in a sentence, we usually find the case of a part of it by seeing what role it plays in the sentence relative to the rest.

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  • 1
    Whether dative or accusative is correct depends on the context, although dative is most likely. A full sentence would help.
    – RHa
    Jan 14 at 18:48
  • Just as a phrase @RHa
    – Buraian
    Jan 14 at 19:07
  • 3
    RHa is right, you need a full sentence. Both dative and accusative are possible without knowing the context. In any case, this same issue has been covered here multiple times, see for example How do you say these different forms of 'in'?. Or just search on "accusative dative preposition".
    – RDBury
    Jan 14 at 21:08
  • @RHa If the original English phrase is "in my house ..." instead of "into my house...", wouldn't the dative by the expected case in German?
    – Tsundoku
    Jan 14 at 21:33
  • 1
    @Tsundoku probably yes, but without a verb it's hard to be sure
    – RHa
    Jan 14 at 22:01