whose(of whom (relative)) determiner [UK: huːz] [US: ˈhuːz]That's the man whose wife died. = Ese es el hombre cuya esposa murió.
cuyas determiner {f-Pl}
whose(of whom (relative)) determiner [UK: huːz] [US: ˈhuːz]The people whose houses were demolished received lodging in the square. = Las personas cuyas casas se desmoronaron fueron hospedadas en la cancha.