no proof
No tengo ninguna prueba de ello.
I have no proof of that.
I don't have any proof.
She doesn’t have any proof.
Porque si el hombre no tiene papel, nunca habrá ninguna prueba.
Because if the man has no paper, there will never be any proof.
— Malcolm X (1992)
They have no proof.
You don't have any proof.
No tengo ninguna prueba de lo contrario.
I have no proof to the contrary.