2. Present condition/past result
The “main” part of the Third Conditional and the “if” part of the Second Conditional. If-clause => Past Simple Tense ; main clause=> would + have + third form
*A present condition, i.e. something that hasn’t changed from the past, to describe why a certain past result didn’t occur.
If I had more money, I would have gone to France.
If I slept longer, I would not have been too tired to go to class.