Το πακέτο δεδομένων είναι διαθέσιμο τώρα.

Το is the definite article, meaning the. It agrees with πακέτο, which is a neuter singular noun, so the article is also neuter singular.

So Το πακέτο = the package.

If you wanted a package, you would say Ένα πακέτο δεδομένων.

In Greek, nouns ending in -ο are very often neuter, and πακέτο is one of them.

Here it is:

• neuter
• singular
• nominative (because it is the subject of the sentence)

That is why it goes with:

• το and not ο or η
• διαθέσιμο and not διαθέσιμος or διαθέσιμη

Δεδομένων is the genitive plural of δεδομένα.

Greek often uses this structure to mean X of Y:

• πακέτο δεδομένων = literally package of data

In English, we usually say data package, but Greek commonly expresses this relationship with the genitive.

So:

• δεδομένα = data
• δεδομένων = of data

Because πακέτο δεδομένων works as a normal compound-like expression meaning data package or package of data.

Adding an article, as in το πακέτο των δεδομένων, would sound more specific, like the package of the data, referring to some particular data already known in context. In a telecom or everyday usage, πακέτο δεδομένων without an article before δεδομένων is the natural phrase.

Είναι is the present-tense form of είμαι, meaning am / is / are.

In a normal sentence like this, Greek does use the verb to be:

• Το πακέτο δεδομένων είναι διαθέσιμο τώρα.

So unlike some languages, Greek usually does not leave out is in this kind of statement.

A useful thing to notice: είναι is used for both he/she/it is and they are in Modern Greek.

Because διαθέσιμο is an adjective, and Greek adjectives must agree with the noun they describe.

Since πακέτο is:

• neuter
• singular

the adjective must also be:

• neuter
• singular

So:

• masculine: διαθέσιμος
• feminine: διαθέσιμη
• neuter: διαθέσιμο

Here, the correct form is διαθέσιμο.

Because διαθέσιμο is a predicate adjective after είναι.

This is the same basic idea as in English:

• The package is available

In Greek, when an adjective comes after είναι to describe the subject, it normally does not take an article:

• Το πακέτο είναι διαθέσιμο

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

The sentence as given is very natural and neutral:

• Το πακέτο δεδομένων είναι διαθέσιμο τώρα.

But you could also say:

• Τώρα το πακέτο δεδομένων είναι διαθέσιμο.
• Το πακέτο δεδομένων τώρα είναι διαθέσιμο.

Putting τώρα at the end is very common and sounds natural. Moving it changes the emphasis slightly, but not the core meaning.

Yes, very much so. Πακέτο δεδομένων is a common phrase, especially in mobile phone or internet contexts, where it means a data package or data bundle.

Depending on context, English might translate it as:

• data package
• data plan
• data bundle

But the Greek phrase itself is perfectly normal and widely used.

The main stress falls on:

• πακέτο
• δεδομένων
• διαθέσιμο
• τωρά

A rough pronunciation guide is:

to pa-KE-to dhe-dho-ME-non EE-ne dhi-a-THE-si-mo to-RA

A couple of useful sound notes:

• δ sounds like th in this
• θ sounds like th in think

So διαθέσιμο begins with a δ sound and contains a θ sound.

You would say:

Τα πακέτα δεδομένων είναι διαθέσιμα τώρα.

The changes are:

• Το → Τα
• πακέτο → πακέτα
• διαθέσιμο → διαθέσιμα

Notice that δεδομένων stays the same, because it is already genitive plural.