I've arranged to meet with
I've arranged to meet him at six.
Tengo que irme porque he quedado con un amigo.
I have to go because I'm meeting a friend.
Pero he quedado con Éva en que volvería esta noche a casa.
But I agreed with Éva that I would come home tonight.
— Zárójelentés (2020)
Acabo de recordar que he quedado con alguien.
I just remembered that I have plans to meet someone.