انا عم برتب الغرفة قبل ما تجي ضيفتنا.

In Levantine Arabic, عم marks an action as in progress, like English am/is/are + -ing.

So:

• عم برتب = I’m arranging / I’m tidying
• without عم, برتب can mean something more general like I arrange or I tidy

In this sentence, عم makes it clear that the speaker is doing it right now.

That is a dialect difference.

In Levantine, the present/imperfect verb usually takes a b- prefix:

• برتب = I arrange / I tidy

In Standard Arabic, the equivalent would be أرتب.

So أنا عم برتب is a very normal Levantine way to say I’m tidying.

Also, in everyday writing, short vowels and marks like shadda are often left out, so برتب is commonly written without showing every pronunciation detail.

It can be left out.

Arabic verbs already show the subject, so عم برتب الغرفة... is a complete and natural sentence.

Including أنا can add:

• clarity
• emphasis
• contrast, like I’m the one tidying the room

So both are fine:

• أنا عم برتب الغرفة
• عم برتب الغرفة

Because it refers to a specific room: the room.

• الغرفة = the room
• غرفة = a room

In this context, the speaker usually means a known room in the house, so the definite form الغرفة is the natural choice.

قبل ما is a very common Levantine way to say before when it is followed by a verb clause.

So:

• قبل ما تجي ضيفتنا = before our guest comes

You can think of قبل ما as a fixed expression introducing something that has not happened yet.

It is very common in speech and corresponds roughly to Standard Arabic قبل أن.

After قبل ما, Levantine usually uses the verb without the b- prefix.

So:

• قبل ما تجي = natural
• قبل ما بتيجي = usually not the normal Levantine choice here

This is because the clause is not a plain present-tense statement. It refers to an event that is still pending: before she comes.

Because عم would suggest an action that is already in progress: she is coming right now.

But قبل ما تجي ضيفتنا means before our guest comes/arrives, meaning the arrival is still future relative to the tidying.

So تجي fits better than عم تجي.

On its own, تجي can indeed mean either:

• you come
• she comes

Context tells us which one is meant.

Here, the following noun ضيفتنا is the subject, and it means our female guest, so تجي must mean she comes.

Because verb-first word order is very common in Arabic.

So تجي ضيفتنا is a very natural way to say:

• our guest comes

You could also hear ضيفتنا تجي, but تجي ضيفتنا sounds very normal, especially in a clause like قبل ما....

ضيفتنا means our female guest.

It is made of:

• ضيفة = female guest
• -نا = our

When a feminine noun ending in -ة takes a suffix, that ending often becomes -ت- in pronunciation and spelling:

• ضيفة
• ضيفتنا

So this is a very common Arabic pattern.

Yes. You would change both the noun and the verb agreement:

• أنا عم برتب الغرفة قبل ما يجي ضيفنا.
• I’m tidying the room before our male guest comes.

Here:

• ضيفنا = our male guest
• يجي = he comes

A Standard Arabic version would be something like:

• أنا أرتب الغرفة قبل أن تأتي ضيفتنا.

Main differences:

• Levantine عم برتب vs Standard أرتب
• Levantine قبل ما vs Standard قبل أن
• Levantine تجي vs Standard تأتي

So the original sentence is clearly Levantine colloquial Arabic, not Standard Arabic.