to deny it
Yo no sabía si negarlo o seguirle la corriente.
I didn't know whether to deny it or play along.
— Crímenes de familia (2020)
No voy a confirmarlo ni negarlo.
I’m not going to confirm or deny it.
You have to deny it.
No puedo confirmarlo ni negarlo.
I can neither confirm nor deny it.
Sabes perfectamente lo que hiciste y no intentes negarlo ahora.
You know perfectly well what you did, and don't try to deny it now.
Aunque lo hayas hecho, debiste negarlo.
Even if you did it, you should have denied it.
— Madre (2009)