Если я выйду пораньше, я приду вовремя.

In Russian, a real future condition usually uses future forms in both parts of the sentence:

• Если я выйду пораньше = if I leave a bit earlier
• я приду вовремя = I will arrive on time

So this is normal Russian grammar. English and Russian work differently here.

Russian does not need to copy the English pattern of present tense after if.

Выйду is the future form of the perfective verb выйти.

Russian uses:

• perfective verbs for a single completed action
• imperfective verbs for a process, repetition, or general fact

Here the meaning is about one future action: leaving earlier on a particular occasion. So выйду is the natural choice.

Compare:

• Если я выйду пораньше, я приду вовремя.
  = one future situation
• Если я выхожу пораньше, я прихожу вовремя.
  = whenever I leave earlier, I arrive on time / a repeated pattern

The infinitive is выйти.

So:

• выйти = to go out, to leave
• я выйду = I will go out / I will leave

This verb is perfective, so its “present-looking” personal forms actually have future meaning.

The infinitive is прийти.

But the 1st person singular future is я приду, not я прийду.

This is just one of those forms you need to learn:

• прийти = to come, to arrive
• я приду = I will come / I will arrive
• ты придёшь
• он/она придёт

So yes, the infinitive has й, but приду does not.

It can mean either, depending on context.

Literally, выйти means to go out. But in many situations, that naturally becomes to leave:

• leave the house
• leave the office
• leave the building

In this sentence, выйду пораньше means something like leave a bit earlier.

A nearby verb is уйти, which also often means to leave. The difference is roughly:

• выйти = to go out from inside somewhere
• уйти = to go away, depart

In many real-life contexts, both can work, but выйти often suggests physically going out from a place.

Both are possible, but пораньше is very common and natural.

• раньше = earlier
• пораньше = a bit earlier / somewhat earlier

The prefix по- often softens the comparative and gives the sense of a little or somewhat.

So:

• выйти раньше = leave earlier
• выйти пораньше = leave a bit earlier

In everyday speech, пораньше sounds very idiomatic.

Вовремя means on time.

It is written as one word because it is an adverb.

Be careful not to confuse it with во время (two words), which means during:

• Я пришёл вовремя. = I arrived on time.
• Во время урока нельзя говорить. = During the lesson, you mustn’t talk.

So:

• вовремя = on time
• во время + noun in genitive = during

Because Если я выйду пораньше is a subordinate clause introduced by если (if).

In Russian, subordinate clauses are normally separated by a comma.

So:

• Если я выйду пораньше, я приду вовремя.

If the если clause comes first, the comma goes after it.

Yes, you can omit я if the subject is clear:

• Если выйду пораньше, приду вовремя.

That sounds natural in Russian.

Repeating я is also correct:

• Если я выйду пораньше, я приду вовремя.

Including both pronouns can make the sentence feel a bit clearer or more balanced. Russian often omits pronouns when the verb ending already shows the subject.

This is a real, possible future condition, not an unreal or contrary-to-fact one.

So Russian uses:

• Если я выйду пораньше, я приду вовремя. = If I leave a bit earlier, I’ll arrive on time.

If you wanted an unreal/hypothetical meaning, then you would use бы and usually past-tense forms:

• Если бы я вышел пораньше, я бы пришёл вовремя. = If I had left earlier, I would have arrived on time.

So:

• without бы = real possibility
• with бы = hypothetical / unreal

As written, it most naturally refers to one future situation.

Because выйду and приду are perfective future forms, the sentence sounds like:

• on this occasion, if I leave earlier, I’ll arrive on time

If you want a habitual/repeated meaning, Russian usually uses imperfective verbs:

• Если я выхожу пораньше, я прихожу вовремя.
  = If/When I leave earlier, I arrive on time.

Or, if you want repeated future behavior:

• Если я буду выходить пораньше, я буду приходить вовремя.
  = If I start leaving earlier regularly, I’ll be arriving on time.

They are very important in Russian verbs of motion.

• вы- often means out
  • выйти = to go out, to leave
• при- often means arrival
  • прийти = to come, to arrive

So the sentence is built around a clear movement idea:

• выйду = I go out / leave
• приду = I arrive

These prefixes help show the direction and result of the movement.

A more literal translation would be:

If I go out a bit earlier, I will arrive on time.

But in natural English, we usually say:

If I leave a bit earlier, I’ll arrive on time.

So the Russian keeps the motion idea very clearly, while the best English version may use leave instead of go out.

The main stresses are:

• Если
• вЫйду
• порАньше
• придУ
• воврЕмя

So you could say it roughly like:

Если я вЫйду порАньше, я придУ воврЕмя.

Stress matters in Russian, so it is worth learning these together with the words.