YOU SAID:
Don't think I'm not watching you
INTO JAPANESE
私はあなたを見ていないとは思わないでください
BACK INTO ENGLISH
Do not think I did not look at you
INTO JAPANESE
私はあなたを見ていないとは思わないでください
BACK INTO ENGLISH
Do not think I did not look at you
That didn't even make that much sense in English.