الشبكة العامة هنا.

Because this is a nominal sentence in Arabic. In the present tense, Arabic usually does not use a separate verb meaning is / are / am.

So:

• الشبكة العامة هنا
• literally: the public network here
• naturally: The public network is here

Arabic often leaves the present-tense be verb unspoken.

A simple breakdown is:

• الشبكة = the network
• العامة = the public / public
• هنا = here

So the structure is:

• الشبكة العامة = the public network
• هنا = is here / here

A more literal order in English would be:

• The public network [is] here

In Arabic, adjectives usually come after the noun they describe.

So:

• الشبكة العامة = the public network
• literally: the network the-public

This is normal Arabic word order:

• noun first
• adjective second

Compare with English, where adjectives usually come before the noun:

• English: public network
• Arabic: network public

Because العامة is an adjective describing a definite noun.

In Arabic, adjectives must agree with the noun in several ways, including:

• definiteness
• gender
• number
• case (in fully vocalized formal Arabic)

Since الشبكة means the network and is definite, the adjective must also be definite:

• الشبكة العامة = the public network

If the noun were indefinite, the adjective would also be indefinite.

Because it is describing الشبكة, and شبكة is a feminine singular noun.

Arabic adjectives must match the noun they describe. So here the adjective is also:

• feminine
• singular
• definite

That is why you get:

• الشبكة العامة

The feminine ending is the ـة at the end of both words.

Yes. In الشبكة, the الـ is affected by the first letter of the noun, ش.

Since ش is a sun letter, the l sound of الـ is not pronounced. Instead, the sh sound is doubled.

So الشبكة is pronounced approximately:

• ash-shabaka (in normal pause)
• or ash-shabakatu with full case ending in careful formal reading

Important points:

• not al-shabaka
• but ash-shabaka

This happens because ش is one of the letters that assimilate the l of الـ.

العامة is pronounced approximately:

• al-ʿāmma (in pause)
• or al-ʿāmmatu with full case ending in careful formal reading

A few things to notice:

• Here the ل in الـ is pronounced normally, because ع is a moon letter, not a sun letter.
• The ع sound is a consonant that does not exist in English, so learners often need practice with it.
• The doubled م means the m sound is held slightly longer: ʿām-ma.

So this is different from الشبكة, where the l disappears in pronunciation.

هنا means here.

Grammatically, it functions as the predicate of the nominal sentence—the part that tells you something about الشبكة العامة.

So the sentence divides like this:

• الشبكة العامة = the topic / subject
• هنا = the comment about it: here

In simple learner-friendly terms:

• What are we talking about? → the public network
• What are we saying about it? → it is here

Yes, in fully vocalized formal Arabic, the sentence would typically be:

• الشبكةُ العامةُ هنا

Here:

• الشبكةُ has ḍamma because it is the subject of the nominal sentence
• العامةُ matches it as an adjective

But in normal writing, short vowels are usually omitted, so you simply see:

• الشبكة العامة هنا

And in everyday careful speech, many speakers also do not pronounce the full case endings.

That letter is called tāʾ marbūṭa: ة.

It often marks a word as feminine.

In this sentence:

• شبكة ends in ة
• عامة ends in ة

In normal pause, it is usually pronounced like -a.
But in connected grammatical forms, it can sound like -t before case endings or in certain constructions.

So a learner may hear:

• shabaka in pause
• shabakatu in full formal pronunciation

That is normal.

This is the normal, straightforward order for this meaning.

But Arabic can change word order for emphasis or style. For example, هنا can sometimes be moved earlier if the speaker wants to emphasize location.

Still, for a learner, الشبكة العامة هنا is a good basic pattern:

• definite noun phrase first
• location word second

So it is a very useful model for sentences like:

• المكتب هنا = The office is here
• السيارة هناك = The car is there

In this sentence, العامة is best understood as an adjective modifying الشبكة.

So:

• الشبكة العامة = the public network

On its own, العامة can sometimes refer to the general public depending on context, but here its grammar shows that it is describing الشبكة.

You can tell because it matches الشبكة in:

• definiteness
• gender
• number

That matching is a strong clue that it is an adjective here.