Στον φούρνο της γειτονιάς παίρνω συχνά ένα κουλούρι και μια τυρόπιτα πριν από τη δουλειά.

Στον is the contraction of σε + τον.

• σε = to / at / in
• τον = the masculine singular accusative article

So στον φούρνο means at the bakery or to the bakery, depending on context. With places like shops, Greek often uses σε where English would say at.

Because after σε, the noun goes in the accusative case.

• dictionary form: ο φούρνος = the bakery / oven
• accusative form: τον φούρνο

So:

• ο φούρνος = subject form
• στον φούρνο = after the preposition σε

This is very common in Greek: prepositions usually require a specific case, and σε takes the accusative.

της γειτονιάς is a genitive phrase meaning of the neighborhood.

• η γειτονιά = the neighborhood
• της γειτονιάς = of the neighborhood

So ο φούρνος της γειτονιάς literally means the bakery of the neighborhood, which is a natural way in Greek to mean the neighborhood bakery or the local bakery.

The genitive is often used for relationships like possession, origin, or description.

Because Greek verbs usually show the subject by their ending.

• παίρνω = I get / I take / I buy
• the ending -ω tells you it is first person singular

So Greek often leaves out subject pronouns unless there is special emphasis.

You could say εγώ παίρνω, but that would usually sound more emphatic, like I am the one who gets...

In everyday Greek, παίρνω is very often used for food, coffee, tickets, and small purchases, with the sense of get, pick up, or have.

So in this kind of sentence:

• παίρνω ένα κουλούρι sounds very natural
• αγοράζω ένα κουλούρι is also correct, but it focuses more directly on the act of buying

A useful way to think about it is:

• παίρνω = everyday, natural, often like I get
• αγοράζω = more explicitly I buy

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

In this sentence, παίρνω συχνά is a very natural order: I often get...

You may also hear:

• Συχνά παίρνω...
• Παίρνω ένα κουλούρι και μια τυρόπιτα συχνά...
  though this sounds less natural here

Greek often moves words around for emphasis, rhythm, or style, but the version in your sentence is very normal.

Because the two nouns have different grammatical genders.

• το κουλούρι is neuter
• η τυρόπιτα is feminine

So the indefinite article changes:

• ένα for neuter singular
• μια for feminine singular

That is why you get:

• ένα κουλούρι
• μια τυρόπιτα

A κουλούρι is a very common Greek bread ring, often covered with sesame seeds. The most famous kind is κουλούρι Θεσσαλονίκης.

It is not exactly the same as a bagel or a pretzel, although English speakers sometimes compare it to those for convenience. In this sentence, it refers to a typical bakery item someone might grab on the way to work.

Because τυρόπιτα is a feminine noun.

A lot of Greek nouns ending in -α are feminine, and τυρόπιτα follows that pattern.

It is also a compound word:

• τυρί = cheese
• πίτα = pie

So τυρόπιτα literally means cheese pie, and grammatically it behaves as a feminine noun:

• η τυρόπιτα
• μια τυρόπιτα

πριν από is a very common way to say before when it is followed by a noun or time expression.

So:

• πριν από τη δουλειά = before work

You will also hear πριν by itself in many cases, especially in everyday speech:

• πριν τη δουλειά

Both are common, but πριν από is especially clear and standard before nouns.

Because after πριν από, the noun is in the accusative, not the genitive.

• η δουλειά = the work / the job
• τη δουλειά = accusative form
• της δουλειάς = genitive form, meaning of the work/job

So here Greek needs:

• πριν από τη δουλειά

not:

• πριν από της δουλειάς

Both come from the same article, την, but in standard modern spelling the final -ν is often dropped before certain consonants.

Since δουλειά begins with δ, the common written form is:

• τη δουλειά

This is a spelling and pronunciation pattern you will see a lot with τον / την.

Yes. Greek word order is much more flexible than English word order.

The original sentence starts with Στον φούρνο της γειτονιάς, which sets the scene first: At the neighborhood bakery...

You could also say things like:

• Παίρνω συχνά ένα κουλούρι και μια τυρόπιτα στον φούρνο της γειτονιάς πριν από τη δουλειά.
• Πριν από τη δουλειά παίρνω συχνά ένα κουλούρι και μια τυρόπιτα στον φούρνο της γειτονιάς.

These are all understandable, but the original version sounds very natural and well-balanced.

A rough pronunciation guide is:

Ston FOO-rno tis yee-toh-nee-AS PEHR-no seekh-NA EH-na koo-LOO-ree keh MEE-a tee-roh-PEE-ta preen A-po tee thoo-lee-A

A few useful notes:

• γ before ει sounds like a soft y sound
• χ in συχνά is a harsh sound, like the ch in German Bach
• the stress matters a lot in Greek:
  • φούρνο
  • γειτονιάς
  • παίρνω
  • συχνά
  • κουλούρι
  • τυρόπιτα
  • δουλειά

If you want, I can also break the whole sentence down word by word with grammar labels.