LEl conditional type 3 se utiliza para hablar de acciones pasadas que no podemos cambiar.
Por tanto, sabemos que la condición es imposible y que la consecuencia es imaginaria.
Se utiliza muy frecuentemente para lamentarse de algo.
La estructura : If + Past Perfect tense
would / could / might + have + past participle
If she had explained me the problem, I would have understood.
(Si ella me hubiese explicado el problema, lo habria entendido.
)
If he had worked more, he could have saved more money.
If it hadn't rained, we would have gone fishing.