قبل ما تروح عالبريد، تاكد انو معك الورقة.

قبل ما means before when it introduces a clause.

So:

• قبل = before
• ما here helps connect it to the following verb

In قبل ما تروح عالبريد the whole chunk means before you go to the post office.

In Levantine, قبل ما + verb is a very common pattern.

No. Here ما does not mean not.

In this structure, ما is just part of the common Levantine way of saying before someone does something:

• قبل ما تروح = before you go
• قبل ما نوصل = before we arrive
• قبل ما يجي = before he comes

So in this sentence, ما is grammatical, not negative.

تروح comes from the verb راح / يروح, which means to go in Levantine Arabic.

A native English speaker often notices that this is different from Standard Arabic:

• Levantine: يروح
• MSA: يذهب

Both mean to go, but يروح is the normal everyday spoken choice in Levantine.

Here تروح means you go.

عالبريد is a contraction of:

• على
• الـ
• بريد

So:

• عالـ = على الـ

This kind of contraction is extremely common in Levantine writing:

• عالبيت = على البيت
• عالمدرسة = على المدرسة
• عالبريد = على البريد

Even though it literally comes from على, in dialect it often works where English would use to.

So عالبريد here means to the post office.

It can mean either, depending on context.

• البريد can refer to mail/post
• It can also refer to the post office

In this sentence, because of تروح عالبريد (go to the البريد), the intended meaning is the post office.

تاكد means make sure or check/confirm.

It is the imperative form, so the speaker is giving a command or instruction:

• تاكد = make sure

In more careful spelling, you may also see تأكد with the hamza.

So both of these may appear in informal Levantine writing:

• تاكد
• تأكد

Same meaning here.

In informal Levantine writing, people often simplify spelling and leave out hamzas.

So:

• تأكد is the more standard spelling
• تاكد is a very common casual spelling

This happens a lot in dialect writing, especially in texting and everyday online writing. It does not change the meaning.

انو means that in this sentence.

It introduces the next clause:

• تاكد انو معك الورقة
• Make sure that you have the paper

In Levantine, you will often see:

• إنو
• انو

Both represent the same everyday word, though pronunciation and spelling can vary by region and writer.

Literally, معك means with you.

But in Arabic, with is often used to express possession:

• معي مصاري = I have money
• معك وقت؟ = Do you have time?
• معه السيارة = He has the car / The car is with him

So معك الورقة literally means the paper is with you, but naturally in English it means you have the paper.

الورقة means the paper or the document.

The definite article الـ shows that this is a specific paper already known in context. For example, maybe both speaker and listener already know which form or document is needed.

• ورقة = a paper / a sheet / a document
• الورقة = the paper / the document

So the sentence is talking about a particular paper, not just any paper.

As written, it is directed to one male.

Clues:

• تروح = you go, masculine singular
• تاكد = make sure, masculine singular
• معك = with you, masculine singular

If speaking to a woman, it would normally be something like:

قبل ما تروحي عالبريد، تأكدي إنو معِك الورقة.

If speaking to more than one person:

قبل ما تروحوا عالبريد، تأكدوا إنو معكم الورقة.

It is Levantine Arabic.

Some clear signs are:

• تروح for go
• عالـ as a contraction of على الـ
• انو as the everyday dialect form of that
• the overall casual spoken style

A Standard Arabic version would sound more like:

قبل أن تذهب إلى البريد، تأكد أن معك الورقة.

So the sentence you were given is normal spoken Levantine, not formal MSA.

A common Levantine-style pronunciation would be roughly:

ʔabl ma truu7 ʕal-bariid, t2akkad enno maʕak il-war'a

A few notes:

• قبل often sounds like ʔabl
• تروح has a long uu
• عـ is the consonant ʕ, the Arabic letter ع
• الورقة is often pronounced il-war'a or something close, depending on region

Exact pronunciation varies across Levantine areas, but this gives a good approximate idea.