YOU SAID:

If it wasn't my honesty, then who knows what would have done this?

INTO JAPANESE

それが私の誠実さではないのなら、誰がこれをしたのか知っているでしょうか？

BACK INTO ENGLISH

If that is not my integrity, do you know who did this?

INTO JAPANESE

それが私の誠実さではないなら、誰がこれをしたのか知っていますか？

BACK INTO ENGLISH

If that is not my sincerity, do you know who did this?

INTO JAPANESE

それが私の誠実さでないならば、誰がこれをしたか知っていますか？

BACK INTO ENGLISH

If that is not my honesty, do you know who did this?

INTO JAPANESE

それが私の正直さではない場合、誰がこれをしたのか知っていますか？

BACK INTO ENGLISH

If that is not my honesty, do you know who did this?