YOU SAID:
i am not happy i am sad
INTO JAPANESE
私は幸せではない私は悲しい
BACK INTO ENGLISH
I am not happy i am sad
INTO JAPANESE
私は悲しいは幸せではないです。
BACK INTO ENGLISH
I am not sad but happy.
INTO JAPANESE
私は悲しくありませんが幸せです。
BACK INTO ENGLISH
I am not sad but happy.
That's deep, man.