I don't believe him/her
No le creo a Tom.
I don't believe Tom.
No le creo, pero dice que Franco Zeffirelli estaba ahí.
I don't believe him, but he says Franco Zeffirelli was there.
— Fue la mano de Dios (2021)
I don't believe him anymore.
Él me dijo que era un mentiroso, pero no le creo.
He told me I was a liar, but I don't believe him.
I don't believe him at all.