Ο προπονητής μιλάει με τον παίκτη πριν από το ημίχρονο.

Ο is the masculine singular definite article, meaning the.

In Ο προπονητής, the noun προπονητής (coach) is masculine singular, so it takes ο in the nominative case.

Greek articles change depending on:

• gender: masculine, feminine, neuter
• number: singular or plural
• case: nominative, accusative, genitive, etc.

So ο here shows that the coach is the subject of the sentence.

This is because the two nouns are in different cases.

• ο προπονητής is the subject, so it is in the nominative
• τον παίκτη comes after με and is in the accusative

Greek often marks noun roles with case endings and article changes.

Here you can compare:

• nominative: ο παίκτης = the player (as subject)
• accusative: τον παίκτη = the player (as object / after certain prepositions)

So με τον παίκτη means with the player, and τον is the masculine accusative singular article.

This is a common masculine noun pattern in Greek.

The dictionary form is:

• ο παίκτης = the player

But in the accusative singular, it changes to:

• τον παίκτη

Many masculine nouns ending in -ης behave like this:

• ο μαθητής → τον μαθητή
• ο οδηγός works differently, but -ης nouns commonly lose the final -ς in some forms

So παίκτη is simply the accusative singular form of παίκτης.

μιλάει means he/she/it speaks or is speaking.

The subject here is ο προπονητής (the coach), which is third person singular, so the verb must also be third person singular.

The verb is μιλάω / μιλώ = to speak.

Common present-tense forms:

• μιλάω / μιλώ = I speak
• μιλάς = you speak
• μιλάει / μιλεί = he/she speaks
• μιλάμε = we speak
• μιλάτε = you all speak
• μιλάνε / μιλούν = they speak

So ο προπονητής μιλάει = the coach speaks / is speaking.

Yes. In Modern Greek, μιλάει and μιλεί are both acceptable third-person singular forms of μιλάω / μιλώ.

• μιλάει is very common in everyday speech
• μιλεί is also correct, but may sound a bit more formal or less common in casual conversation

For a learner, μιλάει is the form you will often hear and use.

με means with.

So:

• μιλάει με τον παίκτη = he is speaking with the player

This is the normal way to say speak with someone in Greek.

Notice that με is followed here by the accusative:

• με τον παίκτη
• με την προπονήτρια
• με το παιδί

πριν από means before.

It is a very common expression in Greek when talking about time:

• πριν από το μάθημα = before the lesson
• πριν από τον αγώνα = before the match
• πριν από το ημίχρονο = before halftime

You may also sometimes see just πριν on its own, depending on the structure of the sentence. But in this sentence, πριν από is the standard and natural way to say before a noun phrase.

ημίχρονο is a neuter noun, so it takes the neuter singular article το.

So:

• το ημίχρονο = the halftime / half-time

Greek nouns have grammatical gender, and you have to learn each noun together with its article:

• ο προπονητής
• ο παίκτης
• το ημίχρονο

That article helps you remember the gender.

It is in the accusative.

The phrase πριν από is followed by the accusative:

• πριν από τον αγώνα
• πριν από τη συνάντηση
• πριν από το ημίχρονο

In this particular noun, το ημίχρονο, the nominative and accusative forms look the same, which is very common for neuter nouns.

So even though the form does not change, the case is still accusative because of πριν από.

In Greek, the present tense often covers both:

• speaks
• is speaking

So μιλάει can mean either:

• speaks
• is speaking

The exact meaning depends on context.

That is very normal in Greek. Unlike English, Greek usually does not need a separate continuous form with is + -ing.

Yes, Greek word order is more flexible than English because case endings help show the role of each noun.

The neutral, straightforward order here is:

• Ο προπονητής μιλάει με τον παίκτη πριν από το ημίχρονο.

But other orders are possible, depending on emphasis, for example:

• Πριν από το ημίχρονο, ο προπονητής μιλάει με τον παίκτη.
• Με τον παίκτη μιλάει ο προπονητής πριν από το ημίχρονο.

These alternatives may sound more marked or emphasize different parts of the sentence, but they are still grammatically possible.

In careful speech, yes: τον παίκτη.

But in natural spoken Greek, the final -ν in words like τον may sometimes be less clearly heard depending on the following sound and the speed of speech. Still, in writing here it stays τον.

For a learner, it is best to say it clearly:

• τον παίκτη

That will always be understood and is fully correct.

προπονητής means coach and is a masculine noun ending in -τής, a very common noun ending in Greek.

Many profession or role nouns follow similar patterns:

• μαθητής = student
• νικητής = winner
• οδηγητής = driver

Its forms include:

• nominative: ο προπονητής
• accusative: τον προπονητή

So this sentence is a good example of how Greek masculine nouns and articles work together.

This sentence is useful because it shows several core Greek patterns at once:

1. Subject in the nominative

   • Ο προπονητής

2. Present tense verb

   • μιλάει

3. Preposition + accusative

   • με τον παίκτη

4. Time expression with πριν από

   • πριν από το ημίχρονο

5. Articles changing by gender and case

   • ο for masculine nominative singular
   • τον for masculine accusative singular
   • το for neuter singular

If you understand those pieces, you understand a lot of essential Greek sentence structure.