debe de haber sido

must have been

→ deber
phrase Rare #23,335
must have been Used to express a guess or assumption about something in the past.
SP: Debe de haber sido un error.
EN: It must have been a mistake.

Para ella debe de haber sido terrible morirse dejando un niño tan lindo.

It must have been terrible for her to die, leaving behind such a lovely child.

— Vivir (1952)

Debe de haber sido el oxígeno.

It must have been the oxygen.

Debe de haber sido muy hermosa.

She must have been very beautiful.

Ella debe de haber sido rica.

She must have been rich.

Debe de haber sido la historia de amor más corta del mundo.

It must have been the shortest love story in the world.

— Dil se.. (1998)

Debe de haber sido duro.

It must have been tough.

Debe de haber sido muy guapa.

She must have been very beautiful.

Debe de haber sido eso.

That must have been it.

— Núremberg (2025)

Debe de haber sido un viaje largo y arduo.

It must have been a long and arduous journey.

— Drácula (2025)

Debe de haber sido brutal.

It must have been brutal.

— Blade Runner 2049 (2017)

Debe de haber sido muy difícil para vosotros.

It must have been very difficult for you.