for certain
Bien, no creo que sepamos eso con certeza.
Well, I don't think we know that for sure.
— Malcolm X (1992)
Not for sure.
Nothing is known for sure.
¿La verdad con certeza antes de hacerlo?
Do you really know for sure before doing it?
— Sin piedad (2026)
For sure.
De otro modo sabrías con certeza que es bueno y que es malo.
Otherwise you would know for sure what is good and what is bad.
— El duelo (2006)
Nadie sabía con certeza cómo había ocurrido el accidente.
Nobody knew for sure how the accident had happened.
Le he dicho que no sabemos eso con certeza.
I told him we don't know that for sure.
— Malcolm X (1992)
No sabré con certeza dónde reside el corazón.
I won't know for sure where the heart resides.
— Los ilusionistas 3: Ahora me ves, ahora no (2025)