YOU SAID:

I didn't not say that you weren't not doing that.

INTO JAPANESE

私はあなたがそれをしていないと言っていませんでした。

BACK INTO ENGLISH

I did not say you were not doing it.

INTO JAPANESE

私はあなたがそれをやっていないと言わなかった。

BACK INTO ENGLISH

I did not say you were not doing it.