YOU SAID:

It was good if you worked hard, is not it?

INTO JAPANESE

それは懸命に働いたのなら良かったではないですか。

BACK INTO ENGLISH

If you worked so hard it was or not.

INTO JAPANESE

あなたは懸命に働いたかどうかだった。

BACK INTO ENGLISH

It was whether or not you worked so hard.

INTO JAPANESE

あなたが懸命に働いたかどうかだった。

BACK INTO ENGLISH

It was whether or not you worked so hard.