were going to
Que iban a aparecer con una piñata monstruosa o algo así.
That they were going to appear with a monstrous piñata or something like that.
— Kajaki (2014)
Mennad y Baya iban a tener sexo.
Mennad and Baya were going to have sex.
Sabía que iban a llegar tarde.
I knew they were going to be late.
Pero si Watson y Pepe no iban a bajar a la playa.
But Watson and Pepe weren't going down to the beach.
— El orfanato (2007)
Osman estaba seguro de que iban a morirse.
Osman was sure they were going to die.
— El prisionero de las montañas (1996)
Tom y Mary me dijeron que iban a estar ausentes.
Tom and Mary told me they were going to be absent.