Želim prijaviti krađu.

Because prijaviti takes a direct object, and direct objects are usually in the accusative case in Croatian.

The basic dictionary form is krađa.
In this sentence, it changes to krađu because it means a theft / the theft as the thing being reported.

• krađa = nominative singular
• krađu = accusative singular

So Želim prijaviti krađu literally follows the pattern I want to report + [object].

This is the normal Croatian way to say want to do something:

• želim = I want
• prijaviti = to report

So želim prijaviti means I want to report.

English uses to before the second verb, but Croatian does not need a separate word for that here. It simply uses the infinitive form of the second verb: prijaviti.

Here, prijaviti means to report, especially in an official sense, such as to the police.

It can also mean other things in other contexts, such as:

• to register
• to sign up
• to report someone/something
• to declare

But in Želim prijaviti krađu, the meaning is clearly to report a theft.

No. Croatian often leaves out subject pronouns when the verb already shows who is doing the action.

• Želim prijaviti krađu. = I want to report a theft.
• Ja želim prijaviti krađu. = also correct, but ja adds emphasis, like I want to report it.

So the version without ja is the most natural in many situations.

Yes. Želim prijaviti krađu. is natural, clear, and appropriate, especially in a formal context like speaking to the police.

If you want to sound a little softer or more polite, you could also say:

• Htio bih prijaviti krađu. if spoken by a man
• Htjela bih prijaviti krađu. if spoken by a woman

Those literally mean I would like to report a theft, and they can sound slightly more polite than Želim.

A simple approximation is:

• Želim ≈ ZHE-lim
• prijaviti ≈ priya-VEE-tee
• krađu ≈ KRA-joo with a soft j/dy-like sound in the middle

A few helpful sound notes:

• ž sounds like the s in measure
• j sounds like English y in yes
• đ is a soft sound, somewhat like dy or a softened j
• lj in želim is a single sound, not a full l + y sequence

You do not need perfect pronunciation to be understood, but those sounds are useful to practice.

This is an important vocabulary distinction.

• krađa = theft
  Someone takes something unlawfully, but not necessarily by force.

• pljačka = robbery or hold-up
  This usually suggests force, threat, or a more dramatic criminal act.

So if you mean that something was stolen, krađa is often the right word.
If you mean an armed robbery or a violent robbery, pljačka may be more appropriate.

Yes, Croatian word order is more flexible than English word order.

The most neutral version is:

• Želim prijaviti krađu.

But other orders are possible for emphasis, for example:

• Krađu želim prijaviti. = It’s a theft that I want to report
• Prijaviti krađu želim. = possible, but less neutral and more marked

For learners, the standard order Želim prijaviti krađu is the best one to use.

Želim is the first person singular present tense of the verb željeti, meaning to want.

So:

• želim = I want
• želiš = you want
• želi = he/she/it wants

That is why the sentence already contains the meaning I without needing ja.

Yes. Croatian does not use articles like a and the, so krađu can mean either a theft or the theft, depending on context.

For example:

• if you walk into a police station and say Želim prijaviti krađu, it often means I want to report a theft
• if both speaker and listener already know which theft is being discussed, it can mean I want to report the theft

The context tells you which one is meant.