YOU SAID:

Ours not to reason why. Ours but to do and die.

INTO JAPANESE

我々 の理由が理由。我々 は、死にます。

BACK INTO ENGLISH

Our reason is the reason. We will die.

INTO JAPANESE

私たちの理由は、理由です。我々 は死んでしまいます。

BACK INTO ENGLISH

Our reason is the reason. We will die.