الشرطي هنا.

In Modern Standard Arabic, the verb to be is usually not stated in the present tense.

So:

• الشرطي هنا = The policeman is here

Arabic simply puts the two parts next to each other:

• الشرطي = the policeman
• هنا = here

If you were talking about the past or future, then a form of كان or another verb could appear:

• كان الشرطي هنا = The policeman was here

Yes. It is a complete and very normal Arabic sentence.

This is called a nominal sentence in Arabic grammar, because it begins with a noun rather than a verb.

Its two main parts are:

• الشرطي — the topic / subject
• هنا — the predicate, telling you where he is

So even without a verb, it is a full sentence.

الـ is the Arabic definite article, equivalent to the in English.

So:

• شرطي = policeman / police officer
• الشرطي = the policeman / the police officer

That is why the sentence means The policeman is here, not just Policeman is here.

No. In this word, the ـي is part of the word itself, not the possessive suffix my.

The word شرطي means policeman or police officer. You should learn it as a complete vocabulary item.

A common beginner mistake is to assume every final ـي means my, but that is not true. Sometimes it is:

• part of the root or word pattern
• part of an adjective/noun form
• only sometimes the possessive ending my

Here, in الشرطي, it is simply part of the noun.

هنا means here. Grammatically, it is an adverb of place.

In traditional Arabic grammar, it is often treated as a ظرف مكان, and in this sentence it functions as the predicate.

So the sentence structure is basically:

• الشرطي — the policeman
• هنا — here

English uses is here; Arabic just uses here as the predicate.

The order الشرطي هنا is the most straightforward way to say The policeman is here.

Arabic often puts:

• the subject first
• then the predicate

So:

• الشرطي هنا = The policeman is here

You can also change the order to:

• هنا الشرطي

But that usually gives a different emphasis, something closer to:

• Here is the policeman
• The policeman is here with extra focus on here

So the original order is the neutral one.

A beginner-friendly pronunciation is:

• ash-shurṭī hunā

Two useful things to notice:

• هنا is pronounced hunā
• although the word is written with الـ, before ش the l sound is assimilated, so الشرطي is pronounced ash-shurṭī..., not al-shurṭī

That happens because ش is a sun letter.

In normal Arabic writing, short vowels and most case endings are usually not written.

So you see:

• الشرطي هنا

But in fully vocalized formal Arabic, the first word would normally be nominative because it is the subject of a nominal sentence:

• الشُّرْطِيُّ هُنا

The final ـُ is the nominative ending, but it is usually omitted in everyday writing.

Usually, no—not for the simple meaning The policeman is here.

In standard Arabic, for a plain present-time statement, you normally just say:

• الشرطي هنا

Adding يكون often changes the meaning or makes it sound less natural in this basic context. يكون is used in other situations, for example to express:

• habitual meaning
• future meaning
• more specific stylistic or grammatical purposes

So for this sentence, the natural MSA form is simply الشرطي هنا.

If you want an indefinite meaning, Arabic often prefers a different structure, such as:

• هنا شرطيٌّ
• يوجد شرطيٌّ هنا

Both can mean A policeman is here / There is a policeman here.

That is because Arabic does not always like starting a sentence with an indefinite singular noun. So for indefinite meanings, learners often see structures like هنا... or يوجد... instead.