YOU SAID:
We both know that's not the case.
INTO JAPANESE
我々は両方とも、そうではないことを知っています。
BACK INTO ENGLISH
We both know that it is not.
INTO JAPANESE
我々は両方ともそれがそうではないことを知っています。
BACK INTO ENGLISH
We both know that it is not.
That didn't even make that much sense in English.