If I had seen him, I would have known him · if I had heard him I would have lain him down flat · if I had believed him I would have kept him next to me ·

If my brother had known him, I would have heard him · if I had not lain him down flat he would have drifted out to sea · if I had not kept him next to me I would not have seen him · if I had never heard him I would not have believed him.