المدرب الشخصي هنا مع صديقي في الصالة الرياضية.

In Arabic, the verb to be is usually not written or spoken in the present tense.

So:

• المدرب الشخصي هنا = The personal trainer is here

There is no separate word for is. This is very normal in Arabic.

If you wanted the past, then Arabic would use a verb:

• كان المدرب الشخصي هنا = The personal trainer was here

So in your sentence, the is is understood automatically.

Because in Arabic, adjectives usually come after the noun they describe.

So:

• المدرب = the trainer
• الشخصي = personal

Together:

• المدرب الشخصي = the personal trainer

This is the opposite of English word order, where adjectives usually come before the noun.

Compare:

• English: personal trainer
• Arabic: trainer personal

That is the normal Arabic pattern.

Because in Arabic, an adjective must match the noun it describes in definiteness.

Here:

• المدرب = the trainer
• الشخصي = the personal

Since the noun is definite, the adjective must also be definite.

So:

• مدرب شخصي = a personal trainer
• المدرب الشخصي = the personal trainer

This agreement is very important in Arabic. The adjective usually agrees with the noun in:

• definiteness
• gender
• number
• case

هنا means here.

In this sentence:

• المدرب الشخصي هنا = The personal trainer is here

Arabic allows some flexibility in word order, especially with adverbs like هنا. In this sentence, it comes after the noun phrase and works naturally.

So the structure is roughly:

• المدرب الشخصي = the personal trainer
• هنا = here
• مع صديقي = with my friend
• في الصالة الرياضية = in the gym

Together: The personal trainer is here with my friend in the gym.

مع means with.

Yes, it is a preposition, and prepositions in Arabic make the following noun genitive.

So:

• مع صديقي = with my friend

If full case endings were written, it would be something like:

• مع صديقي
• underlying case: صديقِ
  • ي

In normal Arabic writing, short vowel case endings are usually not written, so learners often do not see this directly.

Other common prepositions that do the same thing include:

• في = in
• من = from
• إلى = to
• على = on

Because Arabic often shows possession by attaching a pronoun suffix directly to the noun.

Here:

• صديق = friend
• ـي = my

So:

• صديقي = my friend

This is a very common pattern:

• كتابي = my book
• بيتي = my house
• أخي = my brother

So instead of using a separate word for my, Arabic usually adds ـي to the noun.

Because صديقي is already definite through possession.

In Arabic, something possessed by a known owner is automatically definite:

• صديق = a friend
• صديقي = my friend

You do not say الصديقي here.

This is similar to how in English you do not say the my friend. Once you say my friend, it is already specific.

This is a noun + adjective phrase meaning the sports hall or more naturally the gym.

Breakdown:

• الصالة = the hall
• الرياضية = the athletic / sports-related

Together:

• الصالة الرياضية = the gym / the sports hall

Again, the adjective comes after the noun and agrees with it.

Notice the agreement:

• الصالة is feminine singular definite
• الرياضية is also feminine singular definite

That is why the adjective ends with ـة as well.

Because it describes الصالة, which is a feminine noun.

In Arabic, adjectives must agree with the noun they describe in gender.

So:

• صالة = hall, feminine
• therefore the adjective must be feminine too:
  • رياضية = athletic / sports-related, feminine form

If the noun were masculine, the adjective would usually be masculine too.

For example:

• نادي رياضي = a sports club

Here:

• نادي is masculine
• so the adjective is رياضي, not رياضية

Yes. في means in.

So:

• في الصالة الرياضية = in the gym

This is a basic prepositional phrase:

• في = in
• الصالة الرياضية = the gym

Like مع, في is also a preposition, so the noun after it is grammatically in the genitive case, even though that is usually not shown in normal writing.

A little, yes.

The most natural reading is:

• The personal trainer is here with my friend in the gym.

But because Arabic often strings together prepositional phrases, the exact attachment can sometimes be interpreted in slightly different ways, such as:

• the trainer is here
• he is with my friend
• this is happening in the gym

In normal context, this is not a problem. Native speakers use context to understand the intended meaning.

If someone wanted to be extra clear, they could rephrase it depending on what exactly they mean.

The sentence is a nominal sentence, which means it begins with a noun phrase rather than a verb.

You can divide it like this:

• المدرب الشخصي = subject / topic
• هنا مع صديقي في الصالة الرياضية = comment about the subject

More literally:

• The personal trainer
  • here with my friend in the gym

This kind of sentence is very common in Arabic, especially when describing location, identity, or state in the present.

With full case endings, it would be approximately:

• المدرِّبُ الشخصيُّ هنا مع صديقي في الصالةِ الرياضيةِ

Very roughly:

• المدرِّبُ = nominative, because it is the subject
• الشخصيُّ = nominative, matching المدرب
• صديقي = after مع, so genitive
• الصالةِ = after في, so genitive
• الرياضيةِ = genitive, matching الصالة

In everyday written Arabic, these short vowels are usually omitted, so learners normally see:

• المدرب الشخصي هنا مع صديقي في الصالة الرياضية

A careful MSA pronunciation would be close to:

• al-mudarrib ash-shakhṣī hunā maʿa ṣadīqī fī aṣ-ṣālah ar-riyāḍiyyah

A few useful pronunciation notes:

• ال changes in sound before some letters.
  In الشخصي, the ل is not pronounced clearly because ش is a sun letter, so it sounds like ash-shakhṣī.
• ص is a heavy emphatic s sound.
• ع in مع is a consonant not found in English.
• رياضية has a long ī sound.

If you are reading without full endings, that is completely normal for standard written Arabic.