Learn Hardcore Greek: Για να υποβάλω την αίτηση, οφείλω να πληρώσω πρώτα το παράβολο στο γκισέ. - To submit the application, I have to pay the fee at the counter first.

Breakdown of Για να υποβάλω την αίτηση, οφείλω να πληρώσω πρώτα το παράβολο στο γκισέ.

What does για να mean here?

Για να means in order to or so that I can. It introduces a purpose clause.

So:

A useful thing to remember is that για να is a very common fixed pattern in Greek for expressing purpose.

Why is the verb υποβάλω and not υποβάλλω?

Because after να, Greek uses the subjunctive, not the plain indicative form.

Here:

Also, υποβάλω here is the aorist subjunctive form, which is used for a single complete action: submitting the application once.

That fits the meaning well, because submitting an application is seen as one completed step.

Why is there no separate word for I in the sentence?

Because Greek often drops subject pronouns when they are already clear from the verb ending.

Here, the verbs themselves show first person singular:

So Greek does not need εγώ unless the speaker wants extra emphasis.