if you don't do it
Sabes que si no lo haces bien me vas a poner en una situación incómoda.
You know that if you don't do it right, you're going to put me in an awkward situation.
— La doncella (2016)
Te pagaré si no lo haces, ¿vale?
I'll pay you if you don't do it, okay?
— Fallen angels (Ángeles caídos) (1995)
Si no lo haces, Te saco una tira de piel de la espalda.
If you don't do it, I'll peel a strip of skin off your back.
— O Auto da Compadecida (2000)
And if you don't do it, I will.
If you don't do it, we'll kill you.
No pierdes nada y te arrepentirás si no lo haces.
You have nothing to lose and you'll regret it if you don't.
— Love Actually (2003)
Si no lo haces tú, lo haré yo.
If you don't do it, I will.
Y si no lo haces tú lo hacemos nosotros.
And if you don't do it, we will.
If you don't do it, I will.