If it had not been for his father's help, he would have failed in business.
- Si no hubiera sido por la ayuda de su padre, él habría fracasado en los negocios.
If it had not been for his help, we would have failed in business.
- De no haber sido por su ayuda hubiéramos fracasado en los negocios.
I finally got the vents back from the chrome shop. / Now you're in business!.