must have
En su tiempo debió de ser un envoltorio.
It must have been a wrapper back in the day.
— Ratatouille (2007)
A juzgar por la violencia del impacto, debió de morir en el acto.
Judging by the violence of the impact, he must have died instantly.
Él debió de darse cuenta que somos sus padres adoptivos.
He must have realized that we are his adoptive parents.
— Bāhubali: The Beginning (2015)
Con lo inteligente que es, debió de enseñarte.
With how intelligent he is, he should have taught you.
— Quieto, muere, resucita (1990)
Y este pobre chico no tenía madre, debió de pasar mucha hambre.
And this poor boy had no mother; he must have gone very hungry.
— The Host (2006)