Ο καινούριος συνεργάτης φαίνεται ευγενικός, αλλά θέλω λίγο χρόνο ακόμα για να δω αν μπορούμε να δουλέψουμε καλά μαζί.

Ο is the masculine singular nominative definite article, meaning the.

It matches συνεργάτης and καινούριος, which are also masculine singular nominative:

• ο = the
• καινούριος = new
• συνεργάτης = colleague / associate / partner

So Ο καινούριος συνεργάτης means the new colleague.

Greek articles change depending on gender, number, and case, unlike English the, which always stays the same.

In Greek, adjectives can sometimes come before or after the noun, but before the noun is very common and natural here.

So:

• ο καινούριος συνεργάτης = the new colleague

If you moved the adjective after the noun, it could sound more marked or stylistically different depending on context.

For a learner, the safest pattern is:

• article + adjective + noun

So this sentence uses a very standard structure.

Yes, both can mean new, but they are not always identical.

• καινούριος usually means new, brand-new, newly introduced
• νέος can mean new, but it can also mean young

So:

• καινούριος συνεργάτης = a colleague who is new to the job/team
• νέος συνεργάτης can also mean that, but in some contexts νέος may carry a stronger sense of young

In this sentence, καινούριος is a very natural choice because the speaker is talking about a person who has recently become a colleague.

Because ευγενικός here is an adjective, not an adverb.

The verb φαίνεται means seems / appears, and after verbs like this, Greek often uses an adjective that describes the subject.

So:

• ο συνεργάτης φαίνεται ευγενικός = the colleague seems polite

The adjective must agree with the subject:

• masculine singular: ευγενικός
• feminine singular: ευγενική
• neuter singular: ευγενικό

By contrast, ευγενικά is usually an adverb meaning politely:

• μιλάει ευγενικά = he speaks politely

So in this sentence, we need the adjective ευγενικός, because it describes the colleague, not the manner of an action.

Φαίνεται is the 3rd person singular form of φαίνομαι, which means to appear / to seem.

So:

• φαίνομαι = I seem / I appear
• φαίνεται = he, she, it seems / appears

In this sentence, the subject is singular:

• Ο καινούριος συνεργάτης → one person

So the verb is singular too:

• φαίνεται

A useful thing to know is that φαίνομαι looks like a passive/middle form, but its meaning here is active in English: seem.

Because χρόνο is the direct object of θέλω.

• θέλω = I want
• What do I want? λίγο χρόνο = a little time

So Greek uses the accusative case:

• nominative: λίγος χρόνος = a little time, as a subject
• accusative: λίγο χρόνο = a little time, as an object

Compare:

• Λίγος χρόνος μένει. = A little time remains.
• Θέλω λίγο χρόνο. = I want a little time.

That is why both words change form here.

Here ακόμα means still / more / a bit longer, depending on how you translate it naturally.

So:

• λίγο χρόνο ακόμα = a little more time / a little longer

It adds the idea that the speaker needs some additional time, not just time in general.

You will often see ακόμα used in several related ways:

• ακόμα περιμένω = I am still waiting
• θέλω ακόμα ένα λεπτό = I want one more minute
• λίγο χρόνο ακόμα = a little more time

Για να means in order to or so that.

It introduces a purpose clause:

• θέλω λίγο χρόνο ακόμα για να δω...
• I want a little more time in order to see...

This is a very common Greek structure:

• για να + subjunctive

Examples:

• Πήγα νωρίς για να μιλήσω μαζί του. = I went early in order to speak with him.
• Διάβασε για να περάσει την εξέταση. = He studied in order to pass the exam.

So in your sentence, the speaker wants more time for the purpose of finding out something.

Δω is the aorist subjunctive form of βλέπω.

This is one of those Greek verbs whose forms change quite a lot:

• present: βλέπω = I see
• aorist stem: είδα = I saw
• subjunctive based on that aorist stem: να δω = to see

So:

• για να δω = in order to see

In this sentence, see is really closer to find out / determine.

The aorist subjunctive is used because the speaker means a single overall result:

• I need more time to find out whether...

not

• I need more time to be continually watching...

That is why να δω sounds natural here.

It can mean both, depending on context.

Here it means whether:

• να δω αν μπορούμε... = to see whether we can...

This is an indirect yes/no question.

Compare:

• Δεν ξέρω αν έρχεται. = I don’t know whether he is coming.
• Θα έρθω αν έχω χρόνο. = I will come if I have time.

So in your sentence, it is not really a condition. It is the speaker checking or finding out something:

• whether we can work well together

This is mainly a question of aspect.

Greek often chooses between:

• δουλέψουμε = aorist subjunctive
• δουλεύουμε = present subjunctive

Here, να δουλέψουμε presents the action as a whole, as a general outcome or possibility:

• whether we can work well together
• whether we will be able to function well together as a team

It does not focus on the ongoing process itself. It focuses more on the overall result.

If you used να δουλεύουμε, it would sound more like emphasizing an ongoing or repeated situation. In many contexts, Greek prefers the aorist here when talking about whether something is possible as a whole.

So αν μπορούμε να δουλέψουμε καλά μαζί is the most natural choice.

Μαζί means together.

So:

• να δουλέψουμε καλά μαζί = to work well together

It shows that the two people are working with each other, not just working in general.

You will often see μαζί in everyday Greek:

• πάμε μαζί = let’s go together
• μένουμε μαζί = we live together
• δουλεύουμε μαζί = we work together

In this sentence, putting μαζί at the end is completely natural.

Because αλλά means but, and it introduces a contrasting clause.

So the sentence has two main parts:

• Ο καινούριος συνεργάτης φαίνεται ευγενικός
• αλλά θέλω λίγο χρόνο ακόμα...

The comma helps separate the two ideas:

• He seems polite,
• but I still want a little more time...

This is similar to English punctuation with but joining two full clauses.