Moram izaći iz ureda prije šest.

Moram is the 1st person singular present of morati, meaning must or have to.

So:

• moram = I must / I have to
• moraš = you must
• mora = he/she/it must

In this sentence, moram izaći means I have to leave / I must go out.

Croatian often drops subject pronouns when they are not needed.

The ending in moram already tells you the subject is I, so ja is unnecessary.

• Moram izaći. = I have to leave.
• Ja moram izaći. = also possible, but ja adds emphasis, like I have to leave.

So the version without ja is the normal, neutral one.

After morati, Croatian normally uses the infinitive of the main verb.

So the pattern is:

• moram + infinitive
• moraš + infinitive
• mora + infinitive

Here:

• moram = I have to
• izaći = to go out / to leave

Together: moram izaći = I have to leave

Unlike English, there is no separate word like to before the infinitive in this structure.

This is a very common Croatian aspect question.

• izaći is perfective
• izlaziti is imperfective

In this sentence, izaći is used because it refers to one complete act of leaving the office.

So:

• Moram izaći iz ureda prije šest. = I have to leave the office before six.
  One completed departure.

By contrast, izlaziti would suggest repeated action, habit, or process, and would sound unnatural here in most normal situations.

Very roughly:

• izaći = to go out / leave (once, completed)
• izlaziti = to be going out / to go out regularly

Because the preposition iz requires the genitive case.

The noun is:

• ured = office (dictionary form, nominative)

After iz, it changes to genitive:

• iz ureda = out of the office / from the office

So:

• iz
  • genitive

Other examples:

• iz kuće = out of the house
• iz škole = from school
• iz grada = out of the city / from the city

Literally, iz ureda means out of the office or from the office.

In natural English, the whole sentence is usually translated as leave the office before six.

Croatian often expresses this idea with movement out of a place:

• izaći iz ureda = literally go out of the office
• natural English: leave the office

So the Croatian phrasing is a little more spatial than the usual English translation.

Yes, you often can, but the emphasis is slightly different.

• izaći iz ureda = go out of the office, emphasizing exiting the space
• otići iz ureda = leave the office / go away from the office, emphasizing departure more generally

In many everyday contexts, both can work. But izaći focuses more on crossing the boundary and going out, while otići focuses more on leaving as a whole.

So this sentence specifically highlights getting out of the office before six.

Here prije šest means before six o’clock.

Yes, you can think of sati as being understood:

• prije šest = before six
• prije šest sati = before six o’clock

In everyday Croatian, when talking about clock time, sati is often omitted if the meaning is obvious.

Also, prije normally means before and commonly takes the genitive:

• prije posla = before work
• prije sastanka = before the meeting
• prije šest sati = before six o’clock

They are similar, but not identical.

• prije šest = before six
• do šest = until six / by six

So:

• Moram izaći iz ureda prije šest. = I have to leave earlier than six.
• Moram izaći iz ureda do šest. = I have to be out by six at the latest.

In many real situations, do šest may sound more natural if you mean a deadline. But prije šest clearly means earlier than six.

No, Croatian word order is fairly flexible, though some orders sound more neutral than others.

The original sentence is a normal neutral way to say it:

• Moram izaći iz ureda prije šest.

You could also say:

• Prije šest moram izaći iz ureda.
  This emphasizes before six.

• Iz ureda moram izaći prije šest.
  This puts more focus on the office.

So the meaning stays mostly the same, but the emphasis changes.

A simple English-friendly guide:

• izaći ≈ ee-ZAH-chee
• prije ≈ PREE-yeh

A few pronunciation notes:

• ž / z? Here it is plain z, like in zebra
• ć is a soft sound, somewhat like a мягкий ch; learners often approximate it with ch
• je in prije sounds like ye

A rough pronunciation of the whole sentence:

Moram izaći iz ureda prije šest.
≈ MO-ram ee-ZAH-chee eez OO-reh-dah PREE-yeh shest

That is only an approximation, but it is good enough for a beginner.