YOU SAID:

before I make a mistake I never make that mistake

INTO JAPANESE

私は間違いを犯す前に私はその間違いを犯すことはありません

BACK INTO ENGLISH

Before I make a mistake I will not make that mistake

INTO JAPANESE

私は間違いを犯す前に私はその間違いを犯しません

BACK INTO ENGLISH

I will not make that mistake before I make a mistake

INTO JAPANESE

私は間違いを犯す前にその間違いを犯しません

BACK INTO ENGLISH

I will not make that mistake before making a mistake

INTO JAPANESE

私は間違いを犯す前にその間違いを犯しません

BACK INTO ENGLISH

I will not make that mistake before making a mistake