Η φίλη μου μένει απέναντι από τον φούρνο και περνάει κάθε πρωί για ένα κουλούρι.

In Greek, unstressed possessive words like μου usually come after the noun:

• η φίλη μου = my friend
• το σπίτι μου = my house

This is the normal pattern in everyday Greek.
Putting μου before the noun is generally not how possession is expressed in this kind of sentence.

Also note that φίλη is feminine, so η φίλη μου specifically means my female friend.

Yes, it can, depending on context.

• η φίλη μου literally means my female friend
• In some contexts, it can also mean my girlfriend

Greek often relies on context to tell you which meaning is intended. If the meaning has already been shown to the learner as my friend, then that is the intended reading here.

μένω is a very common Greek verb with a few related meanings:

• live somewhere
• stay somewhere
• remain

In this sentence, Η φίλη μου μένει απέναντι από τον φούρνο, it means she lives opposite/across from the bakery.

So:

• μένω στην Αθήνα = I live in Athens
• μένω εδώ = I stay here / I remain here

The exact meaning depends on context.

μένει is the 3rd person singular form of μένω in the present tense.

So:

• μένω = I live / stay
• μένεις = you live / stay
• μένει = he/she/it lives / stays

Since the subject is Η φίλη μου (my friend), the verb must be μένει.

απέναντι από means opposite, across from, or facing.

It is a fixed expression:

• απέναντι από το σχολείο = across from the school
• απέναντι από την τράπεζα = opposite the bank

In your sentence:

• απέναντι από τον φούρνο = across from the bakery

So you can think of απέναντι από as a two-word prepositional phrase.

Because after από here, the noun appears in the accusative case.

The dictionary form is:

• ο φούρνος = the bakery / the oven / the baker’s shop

But in this sentence, after από, it becomes:

• τον φούρνο

This is a normal masculine noun pattern:

• nominative: ο φούρνος
• accusative: τον φούρνο

So:

• ο φούρνος είναι μεγάλος = the bakery is big
• μένει απέναντι από τον φούρνο = she lives across from the bakery

It can mean both, depending on context.

• φούρνος literally means oven
• In everyday Greek, it very often also means bakery

In this sentence, απέναντι από τον φούρνο clearly means across from the bakery.

Here περνάει means something like:

• stops by
• drops by
• goes by

The basic verb περνάω / περνώ has several meanings, including:

• pass
• go by
• spend time
• undergo
• stop by

In this sentence, και περνάει κάθε πρωί για ένα κουλούρι means she regularly goes by the bakery to get a κουλούρι.

So this is not just passes in a physical sense; it suggests a habitual stop.

Yes, in everyday Modern Greek these are alternative present-tense forms of the same verb.

You may see:

• περνάω / περνώ = I pass, I go by
• περνάει / περνά = he/she passes, goes by

Both are common.
περνάει can sound a bit more explicit or conversational to learners because the ending is easier to recognize, but both are standard.

Because κάθε already means every, and with expressions of repeated time, Greek usually does not use the article here.

• κάθε μέρα = every day
• κάθε εβδομάδα = every week
• κάθε πρωί = every morning

So κάθε πρωί is the normal way to say every morning.

The preposition για often means for, but it can also express purpose or what someone is going to get.

So:

• περνάει για ένα κουλούρι = she stops by for a koulouri

In natural English, that often becomes:

• she stops by to get a koulouri
• she drops by for a koulouri

Greek uses για very naturally in this kind of situation.

Κουλούρι is a very common Greek bread ring, usually covered with sesame seeds.

A learner will often hear κουλούρι in the phrase:

• κουλούρι Θεσσαλονίκης

It is a typical breakfast or snack food, so κάθε πρωί για ένα κουλούρι sounds very natural culturally as well as grammatically.

Also note the grammar:

• το κουλούρι = the koulouri
• ένα κουλούρι = a/one koulouri

It is a neuter noun.

Because κουλούρι is neuter, not masculine.

Greek indefinite articles change by gender:

• masculine: ένας
• feminine: μια / μία
• neuter: ένα

So:

• ένας φούρνος = a bakery
• μια φίλη = a female friend
• ένα κουλούρι = a koulouri

Since κουλούρι is neuter, ένα is the correct form.

Yes. The sentence describes something habitual or regular.

Two things show this clearly:

• μένει = she lives
• κάθε πρωί = every morning

So περνάει κάθε πρωί means this is something she does routinely, not just once.

Not completely. Greek word order is more flexible than English word order, because the endings and articles give a lot of grammatical information.

The sentence as given is very natural:

• Η φίλη μου μένει απέναντι από τον φούρνο και περνάει κάθε πρωί για ένα κουλούρι.

But Greek could move some parts for emphasis. For example, κάθε πρωί could appear in another position if the speaker wanted to emphasize the time.

Still, the given order is the most neutral and natural for a learner to use.

A useful breakdown is:

• Η = the
• φίλη = female friend
• μου = my
• μένει = lives
• απέναντι από = across from / opposite
• τον φούρνο = the bakery
• και = and
• περνάει = stops by / goes by
• κάθε πρωί = every morning
• για ένα κουλούρι = for a koulouri / to get a koulouri

That gives you a good grammatical map of the whole sentence.