YOU SAID:

This statement isn't true is

INTO JAPANESE

この声明が本当ではないが

BACK INTO ENGLISH

This statement is not true

INTO JAPANESE

この声明が本当ではないです。

BACK INTO ENGLISH

This statement is true, is not.

INTO JAPANESE

このステートメントは、真ではないです。

BACK INTO ENGLISH

This statement is true, is not.