YOU SAID:

If everyone has a jazz band, they will be safe.

INTO JAPANESE

誰もがジャズバンドを持っていれば、彼らは安全でしょう。

BACK INTO ENGLISH

If everyone had a jazz band, they would be safe.

INTO JAPANESE

誰もがジャズバンドを持っていたら、彼らは安全だろう。

BACK INTO ENGLISH

If everyone had a jazz band, they would be safe.