to have returned
A estas horas debería haber vuelto.
They should have come back by this time.
You shouldn't have come back.
It's good to be back.
I'm glad I'm back.
Deberías de haber vuelto a las nueve.
You should have come back at nine.
Estamos avergonzados de haber vuelto solos.
We are ashamed of having come back alone.
— Nausicaä del valle del viento (1984)
They should have returned by now.