YOU SAID:
happy is sad but sad is not happy when sad is glad.
INTO JAPANESE
幸せは悲しいですが、悲しいときは幸せではありません。
BACK INTO ENGLISH
Happiness is sad, but when I am sad I am not happy.
INTO JAPANESE
幸せは悲しいですが、私が悲しいときは幸せではありません。
BACK INTO ENGLISH
Happiness is sad, but I am not happy when I am sad.
INTO JAPANESE
幸せは悲しいですが、私が悲しいときは幸せではありません。
BACK INTO ENGLISH
Happiness is sad, but I am not happy when I am sad.
That didn't even make that much sense in English.