was going to be
¿Cómo iba a ser la prometida de un hombre casado?
How could I be the fiancée of a married man?
— Malena (2000)
Engrasi, ¿no te habían dicho las cartas que iba a ser una niña?
Engrasi, hadn’t the cards told you it was going to be a girl?
— Legado en los huesos (2019)
No pensé que iba a ser tan cansado.
I didn't think it was going to be so tiring.
— El Gatopardo (1963)
Iba a ser una cena tranquila pero terminó siendo una fiesta enorme.
It was supposed to be a quiet dinner, but it ended up being a huge party.
Pensé que iba a ser más grande.
I thought it was going to be bigger.
Te dije que iba a ser divertido.
I told you it was going to be fun.