YOU SAID:

You said that i wasn't going to lose to him

INTO JAPANESE

彼に負けるつもりはないと言った

BACK INTO ENGLISH

I told him I wasn't going to lose.

INTO JAPANESE

負けるつもりはないと言った

BACK INTO ENGLISH

I said I'm not going to lose.

INTO JAPANESE

負けないと言ったのに

BACK INTO ENGLISH

I told you I wouldn't lose.

INTO JAPANESE

負けないと言っただろう

BACK INTO ENGLISH

I told you I wouldn't lose.