Η φίλη μου άφησε το νεσεσέρ της δίπλα στην μπανιέρα και κρέμασε το μπουρνούζι πίσω από την πόρτα.

In normal Modern Greek, short possessive words like μου, σου, του, της usually come after the noun:

• η φίλη μου = my friend
• το νεσεσέρ της = her toiletry bag
• το σπίτι μας = our house

Greek also normally keeps the definite article with possessives, so Greek says literally something like the friend my, not just my friend with no article.

So η φίλη μου is the standard, natural way to say my friend.

Greek often leaves out subject pronouns because the verb ending already shows the person and number. This is called a pro-drop language.

So:

• άφησε = she/he left
• κρέμασε = she/he hung

Since the sentence already begins with Η φίλη μου, it is clear that the subject is she, so Greek does not need to repeat αυτή.

If you did add αυτή, it would usually sound emphatic, like she herself.

Both are in the aorist, which is the normal Greek tense for a completed action in the past.

So here they mean:

• άφησε = left
• κρέμασε = hung

The aorist is very common in storytelling and narration when you describe single completed actions one after another.

In this sentence, the idea is:

1. she left the toiletry bag
2. she hung the bathrobe

That sequence of finished actions is exactly what the aorist is used for.

της here is the weak genitive pronoun meaning her or literally of her.

So:

• το νεσεσέρ της = her toiletry bag

This is the same pattern as:

• η φίλη μου = my friend
• το βιβλίο σου = your book
• το αυτοκίνητό του = his car

So της is not the subject here. It is a possessive element attached to the noun phrase.

By itself, της just means her. It does not automatically guarantee her own in a strict grammatical sense.

In this sentence, most people will naturally understand το νεσεσέρ της as belonging to my friend, because she is the most obvious female referent. But in a different context, της could refer to another woman.

If Greek wants to make the possession more emphatic, it can use forms like:

• το δικό της νεσεσέρ = her own toiletry bag / her toiletry bag

So context usually tells you whose bag it is.

στην is a contraction of σε + την.

• σε = in, at, to, on depending on context
• την = feminine singular accusative article

So:

• σε την μπανιέρα becomes στην μπανιέρα

After δίπλα, Greek commonly uses σε + accusative to mean next to / beside:

• δίπλα στην μπανιέρα = next to the bathtub

This contraction is standard and very common:

• στο = σε + το
• στη / στην = σε + τη(ν)
• στους = σε + τους

πίσω από is a fixed expression meaning behind.

So Greek does not say just πίσω την πόρτα. The normal pattern is:

• πίσω από + noun

Examples:

• πίσω από την πόρτα = behind the door
• πίσω από το σπίτι = behind the house

After από, Greek uses the accusative, which is why you get την πόρτα.

So you should learn πίσω από as a unit.

This sentence uses three important case patterns:

• Nominative for the subject:

  • η φίλη = the friend

• Accusative for direct objects and after these prepositions:

  • το νεσεσέρ
  • το μπουρνούζι
  • την μπανιέρα
  • την πόρτα

• Genitive in the weak pronouns showing possession:

  • μου = my / of me
  • της = her / of her

So a useful summary is:

• subject = nominative
• object = accusative
• possessive clitic = genitive form

Because both nouns are neuter in Greek.

Greek nouns have grammatical gender:

• masculine
• feminine
• neuter

Here:

• το νεσεσέρ
• το μπουρνούζι

Both are objects, and neuter is very common for object nouns, especially with some loanwords.

You cannot always predict gender from meaning alone, so it is best to learn nouns together with their article:

• το νεσεσέρ
• το μπουρνούζι
• η μπανιέρα
• η πόρτα

In everyday Modern Greek, νεσεσέρ is typically treated as an indeclinable loanword, or at least as a word whose form often stays the same. The article usually shows the grammatical role:

• το νεσεσέρ
• του νεσεσέρ
• στο νεσεσέρ

So the noun itself often remains νεσεσέρ, while the article or surrounding words show case.

This is fairly common with borrowed words in Greek.

Greek uses the definite article much more consistently than English in many noun phrases. In this sentence, the nouns are presented as specific things:

• η φίλη μου
• το νεσεσέρ της
• την μπανιέρα
• το μπουρνούζι
• την πόρτα

In Greek, once something is definite or specific, the article is normally expected. This is especially true with possessives:

• η μητέρα μου
• το βιβλίο της
• ο αδερφός σου

So the repeated articles are not extra or optional decoration; they are just normal Greek grammar.

Yes, Greek word order is more flexible than English word order. The sentence as given has a very neutral narrative structure:

• Η φίλη μου
• άφησε το νεσεσέρ της
• δίπλα στην μπανιέρα
• και κρέμασε το μπουρνούζι
• πίσω από την πόρτα

This is basically:

subject + verb + object + place + and + verb + object + place

Greek can move parts around for emphasis, for example if you want to stress the toiletry bag or behind the door, but the given order is the most straightforward.

The subject is not repeated after και because it is still the same person. Greek does this very naturally:

• Η φίλη μου άφησε ... και κρέμασε ...

English does the same thing:

• My friend left ... and hung ...

So there is no need to say η φίλη μου twice.