to have happened
Isso não deveria ter acontecido.
That shouldn't have happened.
Parece ter acontecido algo grave na estrada.
It seems something serious happened on the road.
Eu lamento por isso ter acontecido.
I'm sorry that happened.
Como isso pôde ter acontecido?
How could this have happened?
Something must have happened.
It shouldn't have happened.
Eu não lembro de nada ter acontecido.
I don’t remember anything happening.
Se atingimos a terra, tivemos sorte de nada disso ter acontecido.
If we made it to land, we were lucky none of this happened.
— As Invasões Bárbaras (2003)