AN UNREAL POSSIBILITY IN THE PRESENT AND/OR THE FUTURE
IF + PAST SIMPLE + WOULD/COULD/MIGHT + BARE INFINITIVE
The second conditional is used to talk about an unreal possibility in the present or future. The situations described in the second conditional are hypothetical. It means that both the action and the result are not real.
If I traveled to Japan, I would visit Tokyo.
If she wrote her essay, it could be the best essay in her class.
If we played football tomorrow, we might play in the rain.
If I found a treasure, I would share it with my family.