YOU SAID:

It's never a war crime the first time

INTO JAPANESE

初めて戦争犯罪になることは決してない

BACK INTO ENGLISH

It's never going to be a war crime for the first time.

INTO JAPANESE

初めて戦争犯罪になることは決してない。

BACK INTO ENGLISH

It will never be a war crime for the first time.

INTO JAPANESE

初めて戦争犯罪になることは決してありません。

BACK INTO ENGLISH

It will never be a war crime for the first time.