to have [done something to] them
Tienes que haberlos visto allí.
You must have seen them there.
Sí, no deberían haberlos golpeado tan mal.
Yes, they shouldn't have beaten them so badly.
— Dangal (2016)
Quizá no deberíamos haberlos creado.
Perhaps we shouldn't have created them.
— El gran diluvio (2025)
¿Cómo podría haberlos salvado?
How could I have saved them?
Alguien tiene que haberlos plantado.
Someone must have planted them.