It's possible, but not very probable . . . We use the Conditional II to talk about future situations that are unreal or nearly impossible to happen. We use the past tense in the if-clause and conditional present in the main clause.
Colin didn't study. He played football. It's April 22nd. Tomorrow is the exam. It is possible, but not very probable that he will pass the exam.
If he studied, he would pass the exam.
Past Tense ------ would + hele ww