would have seen
Dónde habría visto un perro?
Where would I have seen a dog?
— Дылда (2019)
Ya las habría visto.
I would have seen them by now.
— Por eso lo llaman amor (2017)
Si hubiese llegado temprano, yo habría visto a Kelly.
If I had arrived early, I would have seen Kelly.
¿Qué habría visto?
What would I have seen?
— State and Main (2000)