was about to
Quando ele estava prestes a sair, começou um terremoto.
Just as he was about to leave, an earthquake began.
Tom estava prestes a beijar Mary quando o pai dela entrou no quarto.
Tom was about to kiss Mary when her father entered the room.
Você sabe, isto estava prestes a acontecer cedo ou tarde.
You know, this was bound to happen sooner or later.
— Vítima do Passado (1996)
Eu estava prestes a sair quando Mary apareceu do nada.
I was about to leave when Mary appeared out of nowhere.
Outra batalha dura estava prestes a começar.
Another tough battle was about to begin.
Se eles soubessem o que estava prestes a acontecer, teriam mudado seus planos.
If they had known what was about to happen, they would have changed their plans.
Parecia que você estava prestes a fazer isso.
It looked like you were about to do it.
Que estava prestes a conhecer seu pai?
Was she about to meet her father?
— Extermínio: O Templo dos Ossos (2026)
Eu estava prestes a dizer isso.
I was about to say that.
She was about to cry.