YOU SAID:

That which not kills me makes me stronger.

INTO JAPANESE

ないが私を殺すことで強くなれます。

BACK INTO ENGLISH

By killing me is not strong.

INTO JAPANESE

わらわは強くないです。

BACK INTO ENGLISH

Me is not as strong.

INTO JAPANESE

私はあまり強くありません。

BACK INTO ENGLISH

I was not particularly strong.

INTO JAPANESE

特に強いではなかった。

BACK INTO ENGLISH

Was not particularly strong.

INTO JAPANESE

特に強くなかった。

BACK INTO ENGLISH

Was not particularly strong.