Η αδερφή μου δεν φοράει συχνά κολιέ στη δουλειά, αλλά στο πάρτι της άρεσε πολύ αυτό το χρυσό κολιέ.

In Greek, possessed nouns very often take the definite article. So η αδερφή μου is the normal way to say my sister.

This is especially common with:

• family words: η μητέρα μου, ο αδερφός μου
• body parts: το χέρι μου
• many everyday possessed nouns in general

So Greek often says something that is structurally closer to the sister of mine, even though the natural English translation is just my sister.

μου is the weak possessive form meaning my. In Greek, these weak possessives usually come after the noun:

• η αδερφή μου = my sister
• το βιβλίο μου = my book
• οι φίλοι της = her friends

So this word order is completely normal. English puts the possessive before the noun; Greek usually puts this short form after it.

Both exist.

• αδερφή is very common in everyday Modern Greek
• αδελφή is more conservative or formal

A learner will hear and see αδερφή very often in normal speech and writing, so the sentence sounds natural.

Because the sentence is speaking in a general/habitual way, not about one specific necklace.

So δεν φοράει συχνά κολιέ means something like:

• she does not often wear necklaces
• she does not often wear a necklace

Greek often leaves out the article in this kind of broad, non-specific statement.

Compare:

• δεν φοράει συχνά κολιέ = not often, in general
• δεν φοράει συχνά ένα κολιέ = would sound more specific or marked

φοράει is from φοράω / φορώ, meaning to wear.

It is used for:

• clothes
• jewelry
• glasses
• watches
• accessories in general

So φοράει κολιέ means she wears a necklace / necklaces.

Yes. In Modern Greek, many verbs of this type have two common forms in the present:

• φοράει
• φορά

Both are used. The longer form φοράει is very common and especially helpful for learners because it is clearer. You will also see pairs like:

• μιλάει / μιλά
• περνάει / περνά

So the sentence could also have δεν φορά συχνά κολιέ.

They are contractions of σε + τη and σε + το:

• στη = σε τη
• στο = σε το

The preposition σε can mean in, at, or to, depending on context.

So here:

• στη δουλειά = at work
• στο πάρτι = at the party

These contractions are standard and extremely common in Greek.

Yes, Greek word order is fairly flexible, and adverbs like συχνά can move around somewhat.

The sentence uses the very natural order:

• δεν φοράει συχνά κολιέ

This is neutral and common.

You might also hear:

• δεν φοράει κολιέ συχνά

That can work too, but the emphasis shifts a little. For learners, the version in the sentence is a very good default pattern.

Because αρέσω works differently from English like.

Greek builds it more like to be pleasing to someone.

So:

• της = to her
• άρεσε = was pleasing / pleased

That means της άρεσε αυτό το χρυσό κολιέ is literally closer to:

• This gold necklace pleased her

But in natural English, we translate it as:

• She liked this gold necklace

This is one of the most important Greek verb patterns to learn.

της here is a weak object-like pronoun, and these weak forms normally go before the finite verb in Greek.

So:

• της άρεσε
• μου αρέσει
• του μίλησα

That placement is normal Greek syntax. You should think of της άρεσε as a set pattern meaning she liked it / it pleased her.

Because the two parts of the sentence talk about different kinds of situations:

• δεν φοράει συχνά = her usual habit, so present tense
• στο πάρτι της άρεσε πολύ = what happened on that particular occasion, so past tense

So the contrast is:

• general habit now or in general
• one specific past event at the party

This is very natural in both Greek and English.

Because in Modern Greek, demonstratives normally appear together with the definite article:

• αυτό το βιβλίο = this book
• εκείνη η κοπέλα = that girl
• αυτά τα παπούτσια = these shoes

So Greek says something literally closer to:

• this the gold necklace

Even though English just says:

• this gold necklace

This is standard Greek structure.

Because χρυσό agrees with κολιέ in gender, number, and case.

Here κολιέ is:

• neuter
• singular

So the adjective must also be neuter singular:

• το χρυσό κολιέ

Compare:

• ο χρυσός σταυρός = the gold cross
• η χρυσή αλυσίδα = the gold chain
• το χρυσό κολιέ = the gold necklace

There are two useful reasons:

1. κολιέ is usually treated as an indeclinable loanword in everyday Greek, so its form often stays the same.

2. It is also neuter singular, and in Greek the neuter singular nominative and accusative are often identical anyway.

So even though κολιέ has different grammatical roles in the sentence, its form does not change. The article and adjective help show the grammar:

• κολιέ
• αυτό το χρυσό κολιέ