YOU SAID:

Don't sit down because I moved your chair

INTO JAPANESE

私はあなたの椅子を動かしたので座ってはいけない

BACK INTO ENGLISH

Because I moved your chair, I should not sit down.

INTO JAPANESE

私はあなたの椅子を動かしたので、座ってはいけません。

BACK INTO ENGLISH

I moved your chair, so do not sit down.

INTO JAPANESE

私はあなたの椅子を動かしたので、座ってはいけません。

BACK INTO ENGLISH

I moved your chair, so do not sit down.