YOU SAID:

Nobody is going to know. How will they know?

INTO JAPANESE

誰も知りません彼らはどうやって知っているのでしょうか？

BACK INTO ENGLISH

Nobody knows. How do they know?

INTO JAPANESE

誰も知らないどうしてわかるの？

BACK INTO ENGLISH

Nobody knows. How do you know?

INTO JAPANESE

誰も知らないなぜ分かる？

BACK INTO ENGLISH

Nobody knows. How do you know?