Βασικά η φίλη μου συμφωνεί, αλλά θέλει να περάσουμε πρώτα από το σούπερ μάρκετ.

Here Βασικά works like a discourse word: basically, well, or the main point is.

It does not necessarily mean something deeply philosophical like fundamentally. In everyday Greek, speakers often use βασικά to introduce the gist of what they want to say.

So in this sentence, it sets the tone more than it changes the core grammar.

Greek normally uses the definite article with possessives.

So η φίλη μου is literally something like the friend of-mine, but in natural English that is just my friend.

Breaking it down:

• η = the, feminine singular nominative
• φίλη = female friend / girlfriend
• μου = my

Using the article here is completely normal Greek.

It can mean either one, depending on context.

In Greek, η φίλη μου may refer to:

• a female friend
• a girlfriend

If a speaker wants to be very clear, they might use:

• μια φίλη μου = a female friend of mine
• η κοπέλα μου = my girlfriend

So this is one of those expressions where context matters a lot.

συμφωνεί is the 3rd person singular present form of συμφωνώ, meaning agree.

It is in that form because the subject is η φίλη μου, which is she.

So:

• συμφωνώ = I agree
• συμφωνείς = you agree
• συμφωνεί = he/she/it agrees

That is why Greek uses συμφωνεί here.

Because Greek often leaves subject pronouns out when the verb already makes the subject clear.

So instead of saying αυτή θέλει, Greek usually just says θέλει.

In this sentence, once η φίλη μου has already been introduced, Greek does not need to repeat she. The verb form is enough.

Because the subject changes inside the να clause.

The main clause is:

• η φίλη μου συμφωνεί
• η φίλη μου θέλει

So the friend is the subject of agrees and wants.

But in:

• να περάσουμε

the verb is 1st person plural, meaning we.

So the idea is:

• my friend agrees
• but she wants us to stop by the supermarket first

Greek does not need to say εμείς here, because the verb form περάσουμε already shows that the subject is we.

να introduces a dependent verb form, often called the subjunctive in learner grammar.

After verbs like θέλω (want), Greek normally uses:

• θέλω να + verb

So:

• θέλει να περάσουμε = she wants us to stop by / go by

A useful pattern to remember is:

• μπορώ να... = I can...
• πρέπει να... = I must...
• θέλω να... = I want to...

So να is a very common connector before this kind of verb form.

This is about aspect, not tense.

να περάσουμε uses the aorist form, which usually presents the action as one whole event or a single completed action.

That fits the idea here:

• stop by the supermarket once
• make that stop before doing something else

If Greek used να περνάμε, it would sound more like:

• passing by repeatedly
• doing it habitually
• or focusing on the ongoing process

So να περάσουμε is the natural choice for let’s make one stop first.

Yes, in the right context.

περνάω / περνώ is a very flexible verb. It can mean things like:

• pass
• go through
• spend
• get by
• stop by

With από + place, it often means:

• pass by a place
• go via a place
• stop by a place

So να περάσουμε από το σούπερ μάρκετ naturally means something like:

• to stop by the supermarket
• to swing by the supermarket

πρώτα means first.

It shows the order of actions: the supermarket stop should happen before something else.

So the sense is:

• she agrees, but first she wants us to go by the supermarket

Its position is natural and clear. Greek word order is somewhat flexible, but θέλει να περάσουμε πρώτα από... sounds very normal.

Because with περνάω / περνώ, Greek commonly uses από.

So:

• περνάω από το σούπερ μάρκετ = I stop by / pass by the supermarket

If you used a different verb, like πηγαίνω, then στο would be more natural:

• πηγαίνω στο σούπερ μάρκετ = I go to the supermarket

Also, σούπερ μάρκετ is a loanword and is usually treated as an indeclinable neuter noun, which is why the article is το.

So:

• το σούπερ μάρκετ
• από το σούπερ μάρκετ

Because αλλά means but, and Greek normally separates this kind of contrasting clause with a comma.

So the sentence has two parts:

• Βασικά η φίλη μου συμφωνεί
• αλλά θέλει να περάσουμε πρώτα από το σούπερ μάρκετ

The comma helps show that contrast clearly, just as it often does in English.