العريس هنا.

Because in Arabic, the present tense of to be is usually not written or spoken in simple sentences like this.

So Arabic says:

• العريس هنا
• literally: the groom here

but it means:

• The groom is here

If you wanted a past or future meaning, Arabic would use a verb, for example:

• كان العريس هنا = The groom was here
• سيكون العريس هنا = The groom will be here

It is a nominal sentence in Arabic, called جملة اسمية.

A nominal sentence often has:

• a topic / subject: العريس
• a comment / predicate: هنا

So:

• العريس = the thing being talked about
• هنا = what is being said about it

In grammar terms, العريس is the مبتدأ and هنا functions as the predicate part of the sentence.

الـ is the Arabic definite article, meaning the.

So:

• عريس = a groom
• العريس = the groom

Since the English meaning uses the groom, Arabic uses الـ.

It is pronounced roughly as al-ʿa-REES.

A more careful transliteration is:

• al-ʿarīs

A few notes:

• الـ = al-
• ع is the letter ʿayn, a sound English does not have
• ريس here gives the long vowel ī, so you hear something like -rees

Also, because ع is a moon letter, the l in الـ is pronounced clearly:

• al-ʿarīs
• not aʿ-ʿarīs

A careful MSA pronunciation is:

• al-ʿarīsu hunā

In normal unvocalized text, learners often say it more simply as:

• al-ʿarīs hunā

And هنا is pronounced:

• hu-NAA

with stress on the last syllable.

In fully vocalized MSA, it would usually be:

• العريسُ

with ḍammah (ـُ) at the end.

That is because العريس is the مبتدأ, and the مبتدأ is normally marfūʿ (in the nominative case).

So the fully vocalized sentence is:

• العريسُ هنا

In most everyday writing, these short vowels are omitted, so you simply see:

• العريس هنا

Normally, هنا is treated as an indeclinable adverb of place. That means its form does not change for case the way many nouns do.

So you just use:

• هنا = here

It functions as the location part of the sentence.

Yes, Arabic can change word order for emphasis or style, but العريس هنا is the most straightforward, neutral version for The groom is here.

Why?

Because Arabic often starts a nominal sentence with the thing being talked about:

• العريس = topic
• هنا = comment about that topic

If you move هنا to the front, it can sound more marked or emphatic, something like:

• Here is the groom
• or The groom is right here

So for a beginner, العريس هنا is the safest normal pattern.

Because هنا itself already means here as an adverb of place. Arabic does not need an extra preposition before it in this sentence.

So:

• هنا = here

not:

• في هنا in standard usage for this meaning

In MSA, العريس هنا is the natural way to say it.

Yes, العريس هنا is perfectly good Modern Standard Arabic.

Different spoken dialects may use different words for here, such as:

• هون in many Levantine varieties
• هنا is also used in some dialects, but pronunciation and usage can vary

For MSA, though, هنا is standard and correct.