Αν αργήσει πάλι ο προαστιακός, δεν θα έχω χρόνο ούτε να περάσω από τα αποδυτήρια ούτε να στεγνώσω τα μαλλιά μου με το πιστολάκι.

Because this sentence talks about one possible future event.

After αν in this kind of condition, Greek often uses the perfective non-past form, which looks like the aorist subjunctive without να:

• αν αργήσει = if it is late / if it ends up being delayed

This is not past tense here. It refers to the future.

By contrast:

• αργεί is the imperfective non-past
• it sounds more like is late / is being late / tends to be late

So αν αργήσει is the natural choice for a single future possibility.

Because αν and να do different jobs.

• να introduces subjunctive-type clauses
• αν introduces conditional clauses

After αν, Greek uses the same kind of verb form you often see after να, but να itself is not used:

• να αργήσει
• αν αργήσει

So the form is similar, but the particle changes depending on the structure.

Ο προαστιακός means the suburban railway / suburban train.

It is short for something like:

• ο προαστιακός σιδηρόδρομος

In everyday Greek, people often just say ο προαστιακός.

So here it refers to the suburban rail service or train, depending on context.

Greek word order is more flexible than English word order.

In English, you normally say:

• if the suburban train is late again

In Greek, it is very natural to put the verb first and the subject later:

• αν αργήσει πάλι ο προαστιακός

This does not change the basic meaning. It is just natural Greek word order.

Here πάλι means again.

So:

• αν αργήσει πάλι ο προαστιακός = if the suburban train is late again

Its position is fairly flexible in Greek, but this placement is very natural.

It simply means I will not have.

Breakdown:

• δεν = not
• θα = future marker
• έχω = I have

So:

• θα έχω = I will have
• δεν θα έχω = I will not have

Greek uses δεν to negate this main clause.

Because Greek often leaves out the article in expressions of indefinite quantity or general availability.

• δεν θα έχω χρόνο = I won’t have time

This is the normal way to say it.

Using an article, like τον χρόνο, would sound more specific and usually would not fit this sentence.

Ούτε ... ούτε ... means neither ... nor ....

In this sentence:

• δεν θα έχω χρόνο ούτε να περάσω... ούτε να στεγνώσω...

This means:

• I won’t have time either to stop by... or to dry...
• more literally: I won’t have time neither to stop by... nor to dry...

Greek commonly uses this kind of negative concord, so having δεν together with ούτε ... ούτε ... is completely normal.

Because Modern Greek does not normally use an infinitive the way English does.

English says:

• to stop by
• to dry

Greek usually uses:

• να + verb

So:

• να περάσω
• να στεγνώσω

After expressions like έχω χρόνο (I have time), Greek naturally uses να plus a verb:

• έχω χρόνο να... = I have time to...

They are in the perfective form because the speaker means single, complete actions:

• να περάσω από τα αποδυτήρια = to stop by the changing room
• να στεγνώσω τα μαλλιά μου = to dry my hair

The perfective is natural when you are talking about completing an action once.

If you used the imperfective forms, it would suggest something more ongoing, repeated, or process-like, which is less natural here.

Here περνάω / περάσω από means to stop by, to go via, or to pass by a place.

So it does not necessarily mean literally go through in the physical sense.

• να περάσω από τα αποδυτήρια = to stop by the changing room / locker room

Also note:

• από takes the accusative
• so we get τα αποδυτήρια

Because Greek often uses the plural for places like changing rooms / locker rooms, just as English often does.

• το αποδυτήριο = changing room / locker room
• τα αποδυτήρια = changing rooms / locker rooms

In many real situations, the plural sounds very natural because it refers to the whole facility or area.

Because μαλλιά is normally used in the plural when talking about a person’s hair.

So:

• τα μαλλιά = hair
• τα μαλλιά μου = my hair

Greek often uses the definite article with body parts and personal belongings, and then adds the possessive pronoun if needed:

• τα μαλλιά μου = my hair

That is completely standard.

Με το πιστολάκι means with the hairdryer.

Breakdown:

• με = with
• το πιστολάκι = the hairdryer

The word πιστολάκι literally comes from πιστόλι (pistol/gun) with a diminutive ending, because of the shape. It is a very common everyday word for hairdryer.

You may also hear:

• σεσουάρ

But πιστολάκι is extremely common in spoken Greek.

Because Greek often uses the definite article with tools, objects, and means, even where English might sometimes leave it out.

So:

• με το πιστολάκι = with the hairdryer

This sounds perfectly natural in Greek, even if English might just say with a hairdryer in some contexts.