Μπορείτε να μου δώσετε μια διευκρίνιση σχετικά με την υποβολή, ή πρέπει να περιμένω άλλη επιβεβαίωση;

Yes. Μπορείτε is the 2nd person plural form of μπορώ (I can), but in Greek, just like in many European languages, the plural form is often used to address one person politely.

So here Μπορείτε να... means:

• Can you... / Could you... in a formal or polite way

If you were speaking casually to one friend, you would usually say:

• Μπορείς να...

So:

• Μπορείτε να μου δώσετε... = formal/polite
• Μπορείς να μου δώσεις... = informal singular

In Modern Greek, να introduces the verb form that often corresponds to what learners call the subjunctive or dependent verb form.

In this sentence:

• Μπορείτε να μου δώσετε...
• πρέπει να περιμένω...

Both μπορείτε and πρέπει are followed by να + verb.

So Greek says:

• You can to give me...
• I must to wait...

Of course, that is not natural English, but structurally that is closer to how Greek works.

A useful pattern to remember:

• μπορώ να + verb = can
• πρέπει να + verb = must / should / have to

μου means to me or me, depending on the English translation.

In this sentence:

• να μου δώσετε = to give me

Grammatically, μου is a weak pronoun/clitic and comes before the verb. It is the normal Greek way to express the indirect object.

Compare:

• δώστε μου το βιβλίο = give me the book
• μου είπαν = they told me

A native English speaker may expect something more like σε εμένα, but that is usually used for emphasis:

• Δώστε σε μένα το βιβλίο = Give the book to me (emphatic)

Here, plain μου is the natural choice.

Because after να, Greek normally uses the form associated with the perfective stem when the action is seen as a single whole event.

Here:

• να δώσετε = to give
• not να δίνετε = to be giving / to give repeatedly / habitually, depending on context

The verb pair is:

• δίνω = imperfective/basic dictionary form
• δώσω = perfective stem used after να, θα, etc.

So:

• Μπορείτε να μου δώσετε μια διευκρίνιση;
  = Can you give me a clarification?
  one complete action

If you said να δίνετε, it would sound like repeated or ongoing giving, which does not fit well here.

διευκρίνιση is a feminine noun meaning clarification.

That is why it appears with the feminine singular article:

• μια διευκρίνιση

Breakdown:

• μια = a / one (feminine)
• διευκρίνιση = clarification

Because it is the direct object of δώσετε, it is in the accusative singular. For this noun, nominative and accusative happen to look the same:

• nominative: η διευκρίνιση
• accusative: τη(ν) διευκρίνιση

Without the article after μια, you simply get:

• μια διευκρίνιση

Usually, no major difference in meaning. Both can mean a / one.

• μια is extremely common in everyday writing
• μία may be used in more careful writing, or when someone wants to mark the word more clearly as one

In your sentence, μια διευκρίνιση is completely normal and natural.

σχετικά με is a very common fixed expression meaning:

• regarding
• about
• concerning
• with regard to

So:

• μια διευκρίνιση σχετικά με την υποβολή = a clarification regarding the submission

It is best learned as a chunk:

• σχετικά με + accusative noun

Examples:

• σχετικά με το πρόβλημα = regarding the problem
• σχετικά με την αίτηση = regarding the application

Because υποβολή is a feminine noun, and after σχετικά με, Greek uses the accusative.

So:

• nominative: η υποβολή
• accusative: την υποβολή

That is why you get:

• σχετικά με την υποβολή

The final -ν in την is normal here and very common before a vowel sound like υ.

υποβολή literally means submission.

Depending on context, it could refer to:

• submitting an application
• submitting a form
• submitting documents
• submitting an assignment

So in administrative or professional Greek, η υποβολή is a very common noun.

Greek often drops subject pronouns because the verb ending already shows who the subject is.

Here:

• Μπορείτε already tells you it is you (plural/formal singular)
• περιμένω already tells you it is I

So Greek does not need:

• Εσείς μπορείτε...
• εγώ πρέπει να περιμένω...

Those pronouns could be added for emphasis, but they are not necessary.

This is very common in Greek and is something English speakers have to get used to.

πρέπει να can mean several things in English depending on context:

• must
• have to
• should

In your sentence:

• ή πρέπει να περιμένω άλλη επιβεβαίωση;

the most natural English rendering is probably:

• or should I wait for another confirmation?

But depending on tone and situation, it could also feel like:

• or do I have to wait for another confirmation?

So the Greek is slightly flexible, and English chooses the best wording from context.

The verb περιμένω uses the same visible form here after να:

• να περιμένω

Some verbs show a clear difference between dictionary/imperfective and perfective forms after να. For example:

• δίνω → να δώσω
• βλέπω → να δω

But not all verbs show a dramatic visible change in every form, and in this sentence να περιμένω is the normal form.

So the important pattern is still:

• πρέπει να περιμένω = I must/should wait

Because Greek, like English, can use an indefinite noun without the definite article when the meaning is another confirmation rather than the other confirmation.

Here:

• άλλη = another / other
• επιβεβαίωση = confirmation

So:

• άλλη επιβεβαίωση = another confirmation

Both words are feminine singular accusative, so they agree with each other.

Compare:

• μια άλλη επιβεβαίωση = another confirmation / one more confirmation
• την άλλη επιβεβαίωση = the other confirmation

In your sentence, leaving out the article is perfectly natural.

It is in the accusative singular, because it is the object connected with what the speaker may need to wait for.

More importantly for a learner, both words agree as feminine singular:

• άλλη = feminine singular form of άλλος
• επιβεβαίωση = feminine singular noun

So Greek agreement is doing the work here.

It is possible, especially in more careful or formal writing, because the sentence joins two fairly long clauses:

• Μπορείτε να μου δώσετε...
• ή πρέπει να περιμένω...

In less formal writing, some people might omit it. So this is more a punctuation/style issue than a grammar rule you need to worry too much about.

The main thing is that ή means or.

It sounds polite, formal, and professional.

Clues include:

• Μπορείτε instead of Μπορείς
• να μου δώσετε μια διευκρίνιση
• σχετικά με την υποβολή
• επιβεβαίωση

This is the kind of Greek you might use in:

• an email
• a customer-service message
• communication with an office or institution
• a professional setting

It does not sound overly stiff, but it is definitely not casual conversation between close friends.

Yes. The original sentence is correct and natural, but Greek speakers might also say things like:

• Μπορείτε να μου δώσετε μια διευκρίνιση για την υποβολή ή πρέπει να περιμένω άλλη επιβεβαίωση;
• Θα μπορούσατε να μου δώσετε μια διευκρίνιση σχετικά με την υποβολή ή πρέπει να περιμένω άλλη επιβεβαίωση;

Notes:

• για can replace σχετικά με in a slightly simpler, more everyday way
• Θα μπορούσατε... makes it even more polite, similar to Could you possibly...

So your sentence is already good Greek; these are just stylistic alternatives.

A very useful pattern is:

• Μπορείτε να μου δώσετε + noun + σχετικά με/για + topic, ή πρέπει να + verb...?

For example:

• Μπορείτε να μου δώσετε πληροφορίες για την αίτηση; = Can you give me information about the application?

• Μπορείτε να μου δώσετε μια απάντηση σχετικά με το αίτημά μου; = Can you give me an answer regarding my request?

• Πρέπει να περιμένω επιβεβαίωση; = Do I need to wait for confirmation?

This sentence is a good model for polite, practical Greek in real-life situations.