Κράτα το τηλέφωνό σου κοντά, μήπως σε πάρω αργότερα.

Κράτα is the 2nd person singular imperative of κρατάω / κρατώ. In other words, it is a command addressed to one person in an informal way.

So here it means something like keep or hold.

If you were speaking to more than one person, or being polite/formal, you would say Κρατήστε.

This is a very common Greek aspect question.

• Κράτα is the imperfective imperative.
• Κράτησε is the perfective imperative.

The difference is not really past vs present. It is about how the action is viewed:

• Κράτα suggests an ongoing state: keep it near, have it with you, continue keeping it handy.
• Κράτησε sounds more like a single action: take it and hold onto it.

In this sentence, the speaker means keep your phone nearby for some time, so Κράτα is the natural choice.

Greek normally keeps the definite article with possessed nouns.

So the basic pattern is:

article + noun + possessive pronoun

That is why Greek says:

• το τηλέφωνό σου = your phone
• literally something like the phone of yours

This is completely normal Greek and does not sound extra definite or strange.

Because σου here is a weak possessive pronoun (an enclitic), and these usually come after the noun.

So Greek says:

• το τηλέφωνό σου
• ο φίλος μου
• η αδερφή της

This is the standard word order for this type of possession.

This happens because σου is an enclitic.

The noun τηλέφωνο is normally stressed on the third-to-last syllable: τη-ΛΕ-φω-νο. When an enclitic like μου, σου, του, της follows, Greek often adds a second written accent to keep the stress pattern clear:

• το τηλέφωνο
• το τηλέφωνό σου

So the extra accent is not random; it follows a regular spelling rule.

Here κοντά means nearby, close by, or at hand.

So Κράτα το τηλέφωνό σου κοντά means something like:

• Keep your phone nearby
• Keep your phone close
• Keep your phone handy

It does not have to mean physically pressed close to your body. It just means do not put it far away, because the person may need to reach you.

Here μήπως means in case, just in case, or because maybe.

So:

μήπως σε πάρω αργότερα = in case I call you later

This is different from another common use of μήπως, where it can mean something like perhaps in questions, for example:

• Μήπως ξέρεις...; = Do you happen to know...?

In your sentence, it introduces the reason for keeping the phone nearby.

πάρω is the aorist subjunctive form of παίρνω.

After μήπως in this kind of sentence, Greek normally uses the subjunctive, and να is not used here.

So:

• μήπως σε πάρω αργότερα = in case I call you later

Why the aorist subjunctive? Because the speaker is thinking of one possible future action: a single call later on.

If Greek used παίρνω here, it would not fit the structure. If it used θα πάρω, it would sound more like a plain future statement, not the in case idea.

σε is the unstressed object pronoun meaning you.

It comes before the verb:

• σε πάρω = I call you

Greek παίρνω κάποιον takes a direct object when it means call someone, so Greek uses σε and not σου.

Compare:

• σε παίρνω = I am calling you
• θα σε πάρω = I will call you
• μήπως σε πάρω = in case I call you

Yes. Παίρνω basically means take/get, but in everyday Greek it also very commonly means call someone on the phone.

So:

• Σε πήρα χτες. = I called you yesterday.
• Θα σε πάρω αργότερα. = I will call you later.

In this sentence, because the previous part mentions the phone, the meaning call is completely natural and obvious.

αργότερα means later.

It is the natural adverb here for later on / at a later time:

• θα σε πάρω αργότερα = I will call you later

You will also hear μετά in some contexts, but αργότερα is more directly equivalent to later.

You would change the singular informal forms to plural/formal ones:

Κρατήστε το τηλέφωνό σας κοντά, μήπως σας πάρω αργότερα.

Changes:

• Κράτα → Κρατήστε
• σου → σας
• σε → σας

So the structure stays the same, but the pronouns and imperative become plural/formal.