Third+Conditional

__USES__

 * The Third Conditional refers to past situations with hypothetical results.
 * Example: __If I had__ studied for that exam, __I would have passed__. __If Caroline had stayed__ in London, __she would have not met__ her boyfriend.

__FORM__

 * If clause [past perfect] +,+ Main clause [would + present perfect]
 * If clause [past perfect] +,+ Main clause [modal verb + present perfect]
 * Once again, we express probability when we use modal verbs: __If I had bought__ the car, __I could have been__ in Barcelona today.
 * We can use inversion without comma between Main and If clauses.
 * __If we had eaten__ that pizza, __we would have been__ sick. __We would have been__ sick __if we had eaten__ that pizza.