Μεθαύριο θα βάλουν καινούρια ταμπέλα στην είσοδο της πολυκατοικίας, γιατί η παλιά δεν φαίνεται καλά.

Yes, Μεθαύριο is one word, and it means the day after tomorrow.

A useful mini-sequence is:

• σήμερα = today
• αύριο = tomorrow
• μεθαύριο = the day after tomorrow

So Μεθαύριο is a very common time word.

θα βάλουν means they will put / they will place / they will install.

This is the future in Modern Greek:

• θα
  • verb form

Here:

• θα = future marker
• βάλουν = the form used here from βάζω (to put)

So:

• βάζουν = they put / they are putting
• θα βάλουν = they will put

In this sentence, Greek uses the perfective future form, because it refers to a single complete action in the future: putting up a new sign.

This is about aspect, which is very important in Greek.

Greek often distinguishes between:

• imperfective: ongoing, repeated, habitual action
• perfective: one whole completed action

Here, putting up the sign is seen as one complete event, so Greek uses the perfective form:

• θα βάλουν = they will put up

If you used an imperfective future like θα βάζουν, it would sound more like:

• they will be putting
• they will put regularly / repeatedly

That does not fit this context well.

Greek often omits subject pronouns when they are not needed, because the verb ending already shows the person and number.

So βάλουν already tells you this is they.

Greek does this all the time:

• βλέπω = I see
• βλέπεις = you see
• βλέπουν = they see

Because of that, a separate pronoun like αυτοί (they) is usually only added for emphasis or contrast.

In this sentence, θα βάλουν simply means they will put, with they understood from context.

Sometimes this kind of they can also feel a bit like English they in general statements, where the exact people are not important.

καινούρια ταμπέλα means a new sign.

Breakdown:

• καινούρια = new
• ταμπέλα = sign / signboard / plaque / label, depending on context

There is no article because the meaning is indefinite here: a new sign, not the new sign.

Compare:

• καινούρια ταμπέλα = a new sign
• η καινούρια ταμπέλα = the new sign

So the lack of article works much like English a/an in many contexts, even though Greek does not always require an exact equivalent of a.

Because it has to agree with ταμπέλα.

ταμπέλα is:

• feminine
• singular
• accusative here (because it is the object of βάλουν)

So the adjective also appears in the matching form:

• καινούρια ταμπέλα

This is one of the key features of Greek: adjectives agree with the noun in gender, number, and case.

Also, you may also see καινούργια instead of καινούρια. Both are common and mean the same thing.

Ταμπέλα usually means sign, signboard, or sometimes label, depending on context.

In this sentence, because it is being placed at the entrance of the apartment building, the natural meaning is sign or nameplate/signboard.

So here καινούρια ταμπέλα is best understood as something like:

• a new sign
• a new plaque
• a new nameplate

depending on the exact situation.

στην is a very common contraction:

• σε
  • την → στην

So:

• σε την είσοδο becomes στην είσοδο

It means:

• to the entrance
• at the entrance
• on the entrance

In this sentence, the most natural English translation is at the entrance.

Greek uses σε for many meanings that in English may become to, in, on, or at, depending on context.

Because it comes after σε / στην, which normally takes the accusative in Modern Greek.

The basic noun is:

• η είσοδος = the entrance

After σε, it becomes:

• στην είσοδο = at/to the entrance

So this is a case change:

• nominative: η είσοδος
• accusative: την είσοδο

This is very common in Greek with feminine nouns of this type.

της πολυκατοικίας means of the apartment building.

Breakdown:

• της = of the / the (genitive feminine singular)
• πολυκατοικίας = apartment building / block of flats, in the genitive singular

So:

• στην είσοδο της πολυκατοικίας = at the entrance of the apartment building

Greek often uses the genitive where English uses of.

Compare:

• η πόρτα του σπιτιού = the door of the house
• η είσοδος της πολυκατοικίας = the entrance of the apartment building

Πολυκατοικία is a very common Greek word meaning:

• apartment building
• block of flats

Literally, it is made from parts meaning something like many dwellings/homes, but as a normal everyday word it simply refers to a building with multiple apartments.

So in this sentence, it is not just any building—it is specifically a residential apartment building.

Greek can omit a noun when it is already obvious from context, just like English can say the old one.

So:

• η παλιά literally means the old [one]

The missing noun is understood to be ταμπέλα.

This is very natural Greek.

Compare:

• η καινούρια ταμπέλα = the new sign
• η παλιά = the old one / the old sign

Greek does this often with adjectives used as nouns when the noun is clear from context.

Because it refers back to ταμπέλα, which is:

• feminine
• singular
• nominative here, because it is the subject of φαίνεται

So the adjective appears in the matching form:

• η παλιά = the old one / the old sign

If the noun were masculine or neuter, the form would be different.

Yes, φαίνεται can mean appears, but in many contexts it also means:

• is visible
• can be seen
• shows
• looks

Here, η παλιά δεν φαίνεται καλά means:

• the old one is not clearly visible
• the old one cannot be seen well

So this is not really appear in the sense of seem. It is more about visibility.

That is a very common use of φαίνομαι / φαίνεται in Greek.

Here καλά means well.

So:

• δεν φαίνεται καλά = it isn’t visible well / it can’t be seen well
• more natural English: it isn’t clearly visible

In Greek, καλά can function as an adverb, just like well in English.

Greek very often uses φαίνεται for the idea of being visible.

So instead of saying something more mechanical like is not seen well, Greek prefers a natural expression:

• δεν φαίνεται καλά

This sounds idiomatic and everyday.

A good way to remember it is:

• φαίνεται often describes how something comes into view
• δεν φαίνεται καλά = it does not show up clearly

γιατί means because here.

So the structure is:

• statement: Μεθαύριο θα βάλουν καινούρια ταμπέλα στην είσοδο της πολυκατοικίας
• reason: γιατί η παλιά δεν φαίνεται καλά

Together:

• They will put up a new sign the day after tomorrow at the entrance of the apartment building, because the old one is not clearly visible.

Important note: γιατί can also mean why in questions.

Compare:

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

So the exact meaning depends on whether it is a question or not.

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

This sentence is perfectly natural, but Greek could move parts around for emphasis. For example, the time word Μεθαύριο is placed first to highlight when the action will happen.

A basic pattern here is:

• Μεθαύριο = time
• θα βάλουν = verb
• καινούρια ταμπέλα = object
• στην είσοδο της πολυκατοικίας = place
• γιατί... = reason

Greek often puts time expressions early in the sentence, but other orders are possible too.

The comma separates the main statement from the reason clause:

• ..., γιατί η παλιά δεν φαίνεται καλά.

This is common and natural in Greek writing.

In English, punctuation around because can vary depending on style and sentence structure, but in Greek this comma is very normal when the γιατί clause is added as an explanatory reason.

Yes. This sentence is a nice example of Greek case usage.

1. Accusative for the direct object

• καινούρια ταμπέλα = a new sign
  This is the thing being put up.

2. Accusative after σε

• στην είσοδο = at/to the entrance

3. Genitive for possession/relationship

• της πολυκατοικίας = of the apartment building

4. Nominative for the subject

• η παλιά = the old one
  This is the subject of φαίνεται.

So the sentence gives you a compact example of how Greek cases work in real usage.

Yes, in many contexts Greek could also use νέα for new:

• νέα ταμπέλα
• καινούρια ταμπέλα

But there can be a slight nuance:

• καινούριος/καινούρια often emphasizes brand-new
• νέος/νέα can mean new in a broader sense, including recent or newly introduced

In this sentence, καινούρια ταμπέλα sounds very natural because it suggests replacing the old sign with a fresh new one.

A helpful way is:

• Μεθαύριο
• θα βάλουν
• καινούρια ταμπέλα
• στην είσοδο της πολυκατοικίας
• γιατί η παλιά δεν φαίνεται καλά

This helps you see the structure clearly:

1. when
2. what will happen
3. what will be put
4. where
5. why

That is often the easiest way to process longer Greek sentences.