مقاعدنا قرب شباك التذاكر.

Arabic often uses nominal sentences in the present tense, with no verb for is / are.

So:

مقاعدنا قرب شباك التذاكر literally looks like:

our seats near the ticket window

but it means:

Our seats are near the ticket window.

If you wanted a past or future meaning, Arabic would use a verb, but in the present, leaving out are is normal.

مقاعدنا is made of:

• مقاعد = seats
• نا = our

So مقاعدنا means our seats.

The نا is a suffix pronoun attached directly to the noun. Arabic often shows possession this way instead of using a separate word like our.

The singular is مقعد.

So:

• مقعد = seat
• مقاعد = seats

This is a broken plural, which means the inside pattern of the word changes instead of just adding an ending.

This is a normal Arabic word order for a nominal sentence.

• مقاعدنا = the topic: our seats
• قرب شباك التذاكر = the comment/information about them: near the ticket window

So the structure is basically:

Our seats — near the ticket window.

That is a very natural way to express Our seats are near the ticket window in Arabic.

Here قرب means near.

It functions like an adverbial expression of place: near / close to.

So:

• قرب شباك التذاكر = near the ticket window

A learner may also see قريب من meaning near. Both can express similar ideas, but this sentence uses قرب directly before the noun.

Yes. That is also correct and natural.

It means the same thing:

مقاعدنا قريبة من شباك التذاكر = Our seats are near the ticket window.

The difference is mainly structure:

• مقاعدنا قرب شباك التذاكر = uses قرب
• مقاعدنا قريبة من شباك التذاكر = uses قريبة من

A useful grammar note: مقاعد is a non-human plural, so in standard Arabic the adjective often appears in the feminine singular, which is why you get قريبة.

Literally, it is something like:

• شباك = window
• التذاكر = the tickets

But together شباك التذاكر means:

• ticket window
• ticket booth
• ticket office window

This is a very common kind of Arabic noun combination.

Because this is an iḍāfa construction, often called a possessive/genitive construction.

In an iḍāfa:

• the first noun usually does not take الـ
• the second noun can take الـ

So:

• شباك التذاكر = the ticket window
• literally: window of the tickets

Even though شباك has no الـ, the whole phrase can still be definite because the second part, التذاكر, is definite.

Because التذاكر means the tickets, and in this iḍāfa phrase it makes the whole expression definite:

• شباك التذاكر = the ticket window

Without الـ, the phrase would be less definite in meaning.

Also, التذاكر is the plural of تذكرة:

• تذكرة = ticket
• تذاكر = tickets

It is pronounced at-tadhākir, not al-tadhākir.

That is because ت is a sun letter. When الـ comes before a sun letter, the l sound is not pronounced, and the following consonant is doubled.

So:

• written: التذاكر
• pronounced: at-tadhākir

This is a very common pronunciation rule in Arabic.

A useful pronunciation is:

maqāʿidunā qurb(a) shubbāk at-tadhākir

A few notes:

• مقاعدنا = maqāʿidunā
• ق in قرب is a deep q sound, not an English k
• شباك is commonly pronounced shubbāk
• التذاكر is pronounced at-tadhākir because of the sun-letter rule

In normal reading and speech, short vowel endings are often not written, so learners often say it more simply as:

maqāʿidnā qurb shubbāk at-tadhākir

Yes, in full formal grammar there can be case endings, but they are usually not written in ordinary Arabic text.

For example:

• مقاعدُنا could show the subject/topic with -u
• قربَ may appear with -a in this kind of adverbial use
• شباكِ التذاكرِ would involve genitive after قرب or within the iḍāfa analysis, depending on how the phrase is parsed

But for most learners reading normal printed Arabic, the important thing is the unvowelled form:

مقاعدنا قرب شباك التذاكر

That is the normal way you will usually see it written.