YOU SAID:

I don't know what the weapon is!

INTO JAPANESE

武器は知らない

BACK INTO ENGLISH

Don't know about weapons

INTO JAPANESE

武器のことは知らない

BACK INTO ENGLISH

Do not know about weapons

INTO JAPANESE

武器については分からない

BACK INTO ENGLISH

I don't know about weapons

INTO JAPANESE

武器を知らない

BACK INTO ENGLISH

Do not know the weapons

INTO JAPANESE

武器がわからない

BACK INTO ENGLISH

If you do not know the weapons

INTO JAPANESE

武器がわからない場合

BACK INTO ENGLISH

If you do not know the weapons