YOU SAID:

i haven't and already withdrew

INTO JAPANESE

まだ参加しておらず、すでに脱退している。

BACK INTO ENGLISH

You have not joined and you have already left.

INTO JAPANESE

あなたはまだ参加しておらず、すでに出発しています。

BACK INTO ENGLISH

You have not joined yet and you have already departed.

INTO JAPANESE

あなたはまだ参加しておらず、すでに出発しています。

BACK INTO ENGLISH

You have not joined yet and you have already departed.