we would know
Si Sauron tuviera el Anillo, lo sabríamos.
If Sauron had the Ring, we would know.
— El señor de los anillos: El retorno del rey (2003)
Pero si viéramos uno, ¿cómo lo sabríamos?
But if we saw one, how would we know?
— Jojo Rabbit (2019)
Si fuera por mí, no lo sabríamos.
If it were up to me, we wouldn't know.
— Ahora me ves 3 (2025)
Si no hubiera nubes, no sabríamos disfrutar del sol.
If there were no clouds, we wouldn't know how to enjoy the sun.
Si no, sabríamos cómo se llama.
Otherwise, we would know his name.
— American Gangster (2007)