oración subordinada - past perfect (pretérito pluscuamperfecto) oración principal - condicional perfecto, o verbo modal con infinitivo perfecto:
If you had studied, you would have Si hubierais estudiado, habríais passed your exams aprobado vuestros exámenes
If you had come to the party. Si hubieras venido a la fiesta, you could have seen her podrías haberla visto
En los tres tipos de condicionales, el orden subordinada con if-principal, o viceversa, es una cuestión puramente estilística:
If you had come, you could have seen her o You could have seen her if you had come
Nota. En ocasiones, cuando el sentido lo requiere, se usa condicional simple en vez de compuesto, en la principal:
If you had bought that house. Si hubieras comprado esa casa, you’d be rich now serías rico ahora
