Αύριο θα έρθει το συνεργείο στις εννέα για να δει τη βλάβη στο μπάνιο.

Αύριο means tomorrow and is an adverb of time. In Greek, time adverbs like σήμερα (today), αύριο (tomorrow), and χτες / χθες (yesterday) usually appear without an article or preposition.

So:

• Αύριο = tomorrow
• Αύριο θα έρθει... = Tomorrow ... will come

Greek often puts time expressions near the beginning of the sentence, but the position can move for emphasis:

• Αύριο θα έρθει το συνεργείο.
• Το συνεργείο θα έρθει αύριο.

Both are correct.

Θα is the particle commonly used to form the future in Modern Greek.

So:

• έρχεται = he/she/it comes, is coming
• θα έρθει = he/she/it will come

In this sentence:

• θα έρθει = will come

A useful way to think of it is that θα marks a future or future-like meaning, usually followed by a verb form that is often called the subjunctive form in Greek grammar.

Because the sentence refers to a single completed future event: the crew will arrive tomorrow at nine.

• θα έρθει = will come / will arrive once
• θα έρχεται would usually suggest something more like will be coming or repeated/habitual action in the right context, which is not the natural choice here

The verb έρχομαι has two important stems:

• έρχομαι / έρχεται = comes / is coming
• ήρθα = I came
• έρθει appears in forms like να έρθει, θα έρθει

So θα έρθει is the normal future form for come here.

Yes, το συνεργείο is grammatically singular neuter, so the verb is also singular:

• το συνεργείο = the crew / the repair team
• θα έρθει = it will come

Even though a crew contains several people, Greek treats συνεργείο as a singular collective noun, much like English the team can take singular agreement.

So Greek says:

• Το συνεργείο θα έρθει. Literally: The crew will come.

In this context, το συνεργείο means something like:

• the repair crew
• the work crew
• the technicians
• the maintenance team

The word can have different meanings depending on context. For example, it can also mean a workshop or garage in other situations. But here, because they are coming to see the damage/problem in the bathroom, it clearly means the people sent to inspect or fix it.

Στις is a contraction of σε + τις.

Greek normally uses σε for clock times:

• στις πέντε = at five
• στις εννέα = at nine

So:

• σε = at / in / to
• τις = the feminine plural article
• στις = σε τις

You use στις with most hours:

• στις δύο
• στις επτά
• στις δέκα

But with one o’clock, Greek usually says:

• στη μία = at one

Because εννέα is a numeral, and in this use it stays the same.

So:

• στις εννέα = at nine

Many Greek numbers are indeclinable in everyday use, especially in expressions of time. The article/preposition combination (στις) carries the grammatical function, while εννέα stays unchanged.

Για να means in order to or simply to, when expressing purpose.

So:

• για να δει = in order to see
• Αύριο θα έρθει το συνεργείο στις εννέα για να δει... = The crew will come tomorrow at nine to see / in order to inspect ...

This is a very common pattern in Greek:

• Πήγα για να μιλήσω. = I went to talk.
• Ήρθε για να βοηθήσει. = He/She came to help.

After να (and therefore after για να), Greek uses the verb in the form commonly called the subjunctive.

That is why you get:

• να δει = for him/her/it to see

Here the subject of δει is still το συνεργείο, so:

• για να δει τη βλάβη = in order for the crew to see the damage/problem

Compare:

• βλέπει = he/she/it sees
• να δει = that he/she/it see / to see

This verb comes from βλέπω and is irregular:

• βλέπω = I see
• είδα = I saw
• να δω / να δεις / να δει... = to see / that I see, you see, he sees

Because βλάβη is the object of the verb δει.

The crew is going to see the damage/problem, so the noun must be in the accusative case:

• η βλάβη = the damage/problem, as subject
• τη βλάβη = the damage/problem, as object

Compare:

• Η βλάβη είναι σοβαρή. = The damage/problem is serious.
  (η βλάβη = subject)
• Το συνεργείο βλέπει τη βλάβη. = The crew sees the damage/problem.
  (τη βλάβη = object)

Both τη and την can be correct spellings/pronunciations in Modern Greek, depending on what follows and on style.

In everyday modern usage:

• την is the full form
• τη is the shortened form often used before a consonant

Since βλάβη starts with β, it is very common to write:

• τη βλάβη

You may also see:

• την βλάβη

Both are understandable, but τη βλάβη is very normal in modern Greek.

The same thing happens with masculine forms:

• τον φίλο
• sometimes shortened in speech before certain sounds, though spelling conventions vary

Βλάβη is one of those words whose best translation depends on context. It can mean:

• damage
• fault
• problem
• malfunction
• breakdown

In a home-repair context like this sentence, τη βλάβη στο μπάνιο would usually mean:

• the fault/problem in the bathroom
• the damage in the bathroom
• the issue that needs repair

If this is about plumbing, electricity, or fixtures, English might naturally translate it as the problem or the damage rather than always literally the fault.

Στο is a contraction of σε + το.

So:

• σε = in / at / to
• το = the
• στο = in the / at the / to the

Therefore:

• στο μπάνιο = in the bathroom

This is very common in Greek:

• στο σπίτι = in the house / at home
• στο γραφείο = in the office
• στο δωμάτιο = in the room

Because μπάνιο is a neuter noun in Greek:

• το μπάνιο = the bathroom / the bath

Many Greek nouns are assigned grammatical gender, and it does not always match anything logical from English. You simply learn each noun with its article:

• το μπάνιο
• η βλάβη
• το συνεργείο

Learning the article together with the noun is one of the best habits for Greek.

Yes. Μπάνιο can mean:

• bathroom
• bath
• swim, in some contexts

Examples:

• Πάω στο μπάνιο. = I’m going to the bathroom.
• Κάνω μπάνιο. = I’m taking a bath / I’m bathing.
• Πάμε για μπάνιο. = Let’s go for a swim.

In your sentence, στο μπάνιο clearly means in the bathroom.

Greek word order is fairly flexible, though some versions sound more neutral than others.

The given sentence is very natural:

• Αύριο θα έρθει το συνεργείο στις εννέα για να δει τη βλάβη στο μπάνιο.

But you could also say:

• Το συνεργείο θα έρθει αύριο στις εννέα για να δει τη βλάβη στο μπάνιο.
• Στις εννέα αύριο θα έρθει το συνεργείο...
• Για να δει τη βλάβη στο μπάνιο, το συνεργείο θα έρθει αύριο στις εννέα.

Greek often moves elements around for emphasis, topic, or style. The original version is a straightforward neutral sentence.

A rough pronunciation guide is:

AV-rio tha ER-thi to sy-ner-GHI-o stis e-nya ya na DHI ti VLA-vi sto BA-nyo

A few useful notes:

• Αύριο sounds roughly like AV-rio
• έρθει has th like in this, not like English thin
• δει sounds like dhee
• για sounds like ya
• μπάνιο sounds like BA-nyo

The stress falls on:

• Αύριο
• έρθει
• συνεργείο
• εννέα
• βλάβη
• μπάνιο

Yes. Δει is part of the verb system of βλέπω (to see), but this verb is irregular.

Important forms are:

• βλέπω = I see
• βλέπει = he/she/it sees
• είδα = I saw
• να δω / να δεις / να δει = to see / that I see, you see, he/she/it see

So να δει may look very different from βλέπει, but it belongs to the same verb.

This kind of stem change is common in Greek and is something learners gradually get used to.

It can mean either, depending on context.

For this sentence, English could naturally say:

• The crew will come at nine...
• The crew will arrive at nine...

Because a specific time is given, arrive is often a very natural translation in English. But the Greek verb is still simply έρχομαι = come.

Yes, depending on context.

Literally:

• για να δει = to see / in order to see

But in a repair context, English often uses a more natural verb:

• to inspect
• to take a look at
• to check

So a natural English translation might be:

• The repair crew will come tomorrow at nine to inspect the problem in the bathroom.

That is a translation choice, not a different Greek structure.