Μάλλον σε συμφέρει να πάρεις το λεωφορείο, γιατί το ταξί θα κοστίσει περισσότερο.

Here μάλλον means probably, most likely, or it’s probably better depending on how naturally you want to translate the whole sentence.

In this sentence, μάλλον softens the statement a little. The speaker is not saying something absolutely definite, but giving a likely or sensible recommendation:

Μάλλον σε συμφέρει...
= It’s probably in your interest... / It’s probably better for you...

Be careful: μάλλον can also mean rather in other contexts, but here probably is the best fit.

Σε συμφέρει literally means it benefits you or it is advantageous to you.

• σε = you in the weak object form, meaning to you / you
• συμφέρει = is beneficial / suits / is worth it

So:

• με συμφέρει = it suits me / it’s worth it for me
• σε συμφέρει = it suits you / it’s worth it for you
• τον συμφέρει = it suits him

This verb is often used in an impersonal way in Greek. English often translates it more naturally as:

• it’s worth it
• it’s better
• it makes sense
• it is in your interest

So Μάλλον σε συμφέρει να πάρεις το λεωφορείο is not word-for-word Probably you benefit to take the bus, but more naturally:

It’s probably better for you to take the bus.

Να introduces a subordinate clause, often where English uses an infinitive such as to take.

Greek does not use the infinitive the way English does, so instead of saying to take the bus, Greek says something like that you take the bus with να:

• να πάρεις = to take / that you take

In this sentence:

• σε συμφέρει να πάρεις το λεωφορείο = it’s better for you to take the bus

So whenever an English speaker expects an infinitive, Greek will very often use να + verb instead.

Because after να, Greek usually uses the subjunctive form, not the ordinary present indicative.

The verb is παίρνω = I take.
Its forms include:

• παίρνεις = you take / you are taking (present indicative)
• να πάρεις = for you to take / that you take (subjunctive form)

Also, να πάρεις here uses the perfective stem παρ-, which often refers to a single complete action:

• να πάρεις το λεωφορείο = to take the bus as one complete action, one choice
• να παίρνεις το λεωφορείο would suggest something more habitual or repeated, like to be taking the bus regularly

In this sentence, the speaker means one specific trip or decision, so να πάρεις is the natural choice.

Greek uses the definite article much more often than English does.

So Greek normally says:

• το λεωφορείο = the bus
• το ταξί = the taxi

Even when English might say by bus or just take a bus / the bus depending on context, Greek often keeps the article.

Here:

• να πάρεις το λεωφορείο = to take the bus
• το ταξί θα κοστίσει περισσότερο = the taxi will cost more

This does not necessarily mean one particular bus or one particular taxi. It can refer to the means of transport in a general, practical sense.

Here γιατί means because.

So:

• γιατί το ταξί θα κοστίσει περισσότερο = because the taxi will cost more

A common point for learners is that γιατί can also mean why in questions:

• Γιατί έφυγες; = Why did you leave?
• Έφυγα γιατί κουράστηκα. = I left because I got tired.

So the same word can mean why or because, depending on whether it is introducing a question or an explanation.

Θα κοστίσει is the future form: will cost.

• θα marks the future
• κοστίσει is the verb form used here after θα

So:

• κοστίζει = it costs / it is costing
• θα κοστίσει = it will cost

In this sentence, the speaker is talking about the result of a future choice, so the future is natural:

the taxi will cost more

This is again a perfective future, referring to the total cost of that ride as a complete event.

Περισσότερο means more.

So:

• θα κοστίσει περισσότερο = it will cost more

Greek often forms comparisons with πιο or with forms like περισσότερο, depending on the structure.

Here περισσότερο is an adverb modifying κοστίσει:

• cost more

You could think of it as answering How will it cost? → more

Greek often leaves things implicit that English spells out.

In English, we say:

It’s better for you to take the bus.

In Greek, συμφέρει already works in a way that does not require an explicit subject pronoun like it. The idea of taking the bus is really the thing that is advantageous:

• [Το να πάρεις το λεωφορείο] σε συμφέρει = [Taking the bus] is good for you

But Greek commonly puts the να clause after the verb:

• Σε συμφέρει να πάρεις το λεωφορείο

So English needs a dummy it, but Greek does not.

No, not with this verb in standard Greek.

With συμφέρει, the person affected is normally expressed with the weak accusative pronoun:

• με συμφέρει
• σε συμφέρει
• τον/την συμφέρει
• μας συμφέρει

So σε συμφέρει is correct.

An English speaker might expect a form meaning to you, but Greek uses the accusative object pronoun here, not the genitive one.

The given word order is natural and neutral:

Μάλλον σε συμφέρει να πάρεις το λεωφορείο, γιατί το ταξί θα κοστίσει περισσότερο.

Greek word order is fairly flexible, so you could move things around for emphasis. For example:

• Σε συμφέρει μάλλον να πάρεις το λεωφορείο...
• Το λεωφορείο μάλλον σε συμφέρει να πάρεις... (less neutral, more marked)

But the original version sounds very natural in everyday speech.

The basic flow is:

1. μάλλον = probably
2. σε συμφέρει = it’s better for you / it suits you
3. να πάρεις το λεωφορείο = to take the bus
4. γιατί... = because...
5. το ταξί θα κοστίσει περισσότερο = the taxi will cost more

So even though Greek allows flexibility, the original order is a good one to learn first.

A fairly literal breakdown would be:

• Μάλλον = probably
• σε = you
• συμφέρει = benefits / suits
• να πάρεις = to take / that you take
• το λεωφορείο = the bus
• γιατί = because
• το ταξί = the taxi
• θα κοστίσει = will cost
• περισσότερο = more

So a more literal English version would be:

Probably it benefits you to take the bus, because the taxi will cost more.

That is not the most natural English, but it helps show how the Greek sentence is built.