Το λάστιχο κλατάρει.

Το is the definite article in Greek, meaning the.

Here it is neuter singular, because λάστιχο is a neuter singular noun. So:

• το λάστιχο = the tire

Greek articles change depending on gender, number, and case, so you cannot use just one form like English the.

Λάστιχο can mean a few different things depending on context, such as:

• rubber
• elastic / rubber band
• hose
• tire

In this sentence, it means tire. That is a very common use in everyday Greek.

So even though the basic idea of the word is connected to rubber, the context tells you that το λάστιχο here is the tire.

Yes, κλατάρει is a verb form. Its dictionary form is usually κλατάρω.

In this sentence:

• κλατάρω = to go flat, to get a puncture, to lose air
• κλατάρει = it goes flat / it is going flat

So κλατάρει is the 3rd person singular present tense form, matching the subject το λάστιχο.

Because the subject is third person singular: the tire.

Greek verbs change their endings depending on the subject. With κλατάρω, the relevant present-tense forms are:

• εγώ κλατάρω = I go flat / I get a puncture
• εσύ κλατάρεις = you go flat
• αυτό κλατάρει = it goes flat

Since το λάστιχο is it, Greek uses κλατάρει.

Yes, it is in the present tense.

Greek often uses the present tense in cases where English might say:

• The tire is going flat
• The tire has a flat
• The tire’s gone flat

So the Greek present here can sound very natural for a current situation that is happening or is now true.

It is mostly colloquial / everyday language.

It is very common in speech, especially in practical situations like talking about a car or bicycle tire. In more formal language, you might also hear other ways to describe the problem, but κλατάρει is very natural in conversation.

Also, κλατάρω can sometimes be used more broadly and informally to mean to give out, to run out of energy, or to be exhausted, depending on context.

A simple pronunciation guide would be:

to LAS-ti-ho kla-TA-ri

A few notes:

• λάστιχο is stressed on λά
• κλατάρει is stressed on τά
• Greek χ is not like English ch in chair. It is a rough sound, somewhat like the h in huge for many English speakers, though the exact Greek sound is different.

Greek often drops subject pronouns like he, she, or it, because the verb ending already shows the person and number.

But here the subject is a noun, not a pronoun:

• Το λάστιχο κλατάρει. = The tire is going flat.

If you removed το λάστιχο, you would just get:

• Κλατάρει. = It’s going flat.

That is possible only if the context already makes clear what it refers to.

Yes, Greek word order is more flexible than English.

The neutral, straightforward order is:

• Το λάστιχο κλατάρει.

But in some contexts you might also hear:

• Κλατάρει το λάστιχο.

This can sound more like you are noticing or announcing the problem: The tire’s going flat.

Both are grammatical; the difference is mostly about emphasis and context.

Yes, λάστιχο is a neuter noun, so it normally goes with neuter forms such as:

• το λάστιχο = the tire
• ένα λάστιχο = a tire

And if you use adjectives with it, they also need to be in the neuter form.

Yes. Λάστιχο can refer to a tire in general, so the sentence could describe:

• a car tire
• a bike tire
• a motorbike tire
• another rubber tire, depending on context

Greek often relies on context unless the speaker wants to be more specific.

A few things:

• λάστιχο does not map neatly to just one English word; its meaning depends on context.
• κλατάρει is a very natural Greek verb here, but English usually uses a phrase like go flat rather than a single verb.
• Greek uses a gendered article, so you must learn το λάστιχο, not just λάστιχο in isolation.
• The stress marks matter: λάστιχο, κλατάρει.

So although the sentence is short, it contains several very typical Greek features: article + noun gender + verb conjugation + colloquial vocabulary.