to have happened
Como eso pudo haber ocurrido con Daniel.
Like that could have happened to Daniel.
— Fack ju Göhte (2013)
¿Cómo pudo haber ocurrido eso?
How could that have happened?
Eso nunca debería haber ocurrido.
That should never have happened.
Algo le debe haber ocurrido a ella.
Something must have happened to her.
— La canción del mar (2014)
Algo tiene que haber ocurrido allí abajo.
Something must have happened down there.
Nada grave, gracias a Dios, pero podría haber ocurrido.
Nothing serious, thank God, but it could have happened.
— Roma città aperta (1945)
Porque sabemos que podría haber ocurrido justo al revés.
Because we know it could have happened just the other way around.