- If it should rain tomorrow, the party would not be held.
- If I were to be young again, I would go to America to study.
- If the sun were to rise in the west, I would not break my word.
(from a Korean English Grammar book)
Present real conditional (1) has its reference time in the future, and present unreal conditional (2) and (3) have their references in the present; so I guess 'would' in all three can be replaced by 'will.' Is this possible?