YOU SAID:

this is the family computer that is why i use it downstairs.

INTO JAPANESE

これは、階下にそれを使用する理由は、家族のコンピューターです。

BACK INTO ENGLISH

This is family computer downstairs for that reason.

INTO JAPANESE

これは、その理由の家族のコンピューターの階下です。

BACK INTO ENGLISH

This is the reason for its family computer downstairs.

INTO JAPANESE

これはその家族のコンピューターの階下の理由です。

BACK INTO ENGLISH

This is the reason for its family computer downstairs.