Breakdown of Если мы выйдем пораньше, мы дойдём до вокзала пешком.
Questions & Answers about Если мы выйдем пораньше, мы дойдём до вокзала пешком.
In Russian, after если (if), you normally use a verb form that looks like the future when you are talking about a real future condition:
Если мы выйдем пораньше, мы дойдём...
Literally, both verbs are future: if we leave / when we leave, we will get there.
This is normal Russian grammar. English avoids will in the if-clause, but Russian does not work that way.
So:
- Если мы выйдем... = If we leave...
- Если он придёт... = If he comes...
- Если они позвонят... = If they call...
Выйдем is perfective, and here Russian wants a completed single action: if we leave / once we have set out.
- выйдем = we will go out / leave as one complete action
- будем выходить would mean something more like we will be in the process of leaving or repeated/ongoing action, which does not fit well here
In this sentence, the idea is:
- first we leave earlier,
- then as a result we will reach the station on foot.
So perfective выйдем is the natural choice.