YOU SAID:

I won't go if he's there and already went

INTO JAPANESE

彼がそこにいて既に行くなら私は行かない

BACK INTO ENGLISH

I will not go if he is there already.

INTO JAPANESE

彼がすでにそこにいたら私は行かないだろう。

BACK INTO ENGLISH

I will not go if he is already there.

INTO JAPANESE

彼がすでにそこにいるなら、私は行かないだろう。

BACK INTO ENGLISH

If he is already there, I will not go.

INTO JAPANESE

彼がすでにそこにいるなら、私は行かないだろう。

BACK INTO ENGLISH

If he is already there, I will not go.