مرتب اخي وصل اليوم، فراح يدفع اجار الشقة.

One possible pronunciation is:

martab akhi wisel il-yōm, fa-rāḥ yidfaʿ ajār ish-shaʾʾa

A few notes:

• Exact vowels vary by country and city.
• فراح is really فـ + راح said together.
• Informal dialect spelling is not fully standardized, so you may see slightly different spellings and transliterations.

Because in informal Arabic typing, people often leave hamzas out.

So:

• اخي = أخي
• اجار = إجار or sometimes إيجار

This is very common in chat, texting, and informal dialect writing. It does not usually change the meaning.

This is the Arabic iḍāfa structure, often called the construct state.

• مرتب = salary
• أخي = my brother

Put together, مرتب أخي means my brother's salary.

In Arabic, possession is often shown by putting two nouns next to each other:

• first noun = the thing possessed
• second noun = the owner

So literally it looks like salary my-brother, but naturally it means my brother's salary.

Because in an iḍāfa construction, the first noun normally does not take الـ.

So:

• مرتب أخي = my brother's salary
• not المرتب أخي

The whole phrase is already definite because أخي is definite. In other words, مرتب أخي already means a specific salary: my brother's salary.

Yes, مرتب can mean salary/pay in colloquial Arabic, including Levantine usage. But راتب is also common and is closer to MSA.

So depending on the speaker or region, you may hear either:

• مرتب
• راتب

Both can work for salary, though one may sound more colloquial or more common depending on where you are.

Yes, وصل literally means arrived, but Arabic often uses it with things like:

• money
• messages
• payments
• letters

So مرتب اخي وصل اليوم naturally means something like:

• My brother's salary came today
• My brother got paid today
• My brother's salary arrived today

That use is completely normal.

Because اليوم is the normal word for today in both MSA and dialect.

Even though it literally contains الـ, you should usually just learn اليوم as a fixed time expression meaning today.

فـ means something like:

• so
• then
• and so

It connects the two parts of the sentence:

• مرتب اخي وصل اليوم = my brother's salary arrived today
• فراح يدفع اجار الشقة = so he will pay the apartment rent

It shows result or consequence.

In Levantine, راح can still mean went, but it is also very commonly used as a future marker.

So here:

• راح يدفع = he will pay / he’s going to pay

This is one of the most common ways to talk about the future in Levantine Arabic.

Because after future markers like راح, Levantine Arabic normally uses the imperfect/present-form verb.

So:

• يدفع by itself can mean he pays / he is paying
• راح يدفع means he will pay

That pattern is very normal:

• راح يروح = he will go
• راح يشتري = he will buy
• راح يدفع = he will pay

Arabic verbs already include subject information.

يدفع tells you the subject is he:

• يدفع = he pays / he will pay in context

So Arabic often does not need a separate word for he unless you want extra emphasis.

This is another iḍāfa construction:

• اجار = rent
• الشقة = the apartment

Together:

• اجار الشقة = the apartment rent = the rent of the apartment

In an iḍāfa:

• the first noun usually has no الـ
• the second noun can be definite
• the whole phrase becomes definite

So اجار الشقة is correct, while الاجار الشقة is not the normal structure.

Because this is Levantine Arabic, not formal MSA.

In everyday Levantine:

• case endings are not pronounced
• tanwīn is not used in normal speech
• verb endings are simpler than in MSA

So a dialect sentence like this is much more natural without MSA-style endings.

It is understandable, especially in writing, but in very everyday speech many Levantine speakers might use forms like:

• أخوي
• خيي
  depending on region

So the sentence is understandable as written, but a more casual spoken version might sound slightly different. Dialect writing often mixes more formal-looking and more colloquial forms.