На случай если буду нужен, то я там

На случай если буду нужен, то я там же где и был когда был не нужен.

Результаты (английский) 1:

In case if I need one, I was there when it wasn't needed.

Результаты (английский) 2:

In case you need me, I'm in the same place where he was when he was not needed.

Результаты (английский) 3:

In case if I need it, but I was there, where I was when it was not needed.