Večeras ću pregledati svoje bilješke prije ispita.

Croatian future tense I is made with:

• the present tense of htjeti (ću, ćeš, će, ćemo, ćete, će)
• plus the infinitive of the main verb

So here:

• ću = I will
• pregledati = to review / to look over

Together: ću pregledati = I will review

In Croatian, this auxiliary often appears as a clitic, which means it likes to stand in the second position in the sentence or clause. That is why you get:

• Večeras ću pregledati...

rather than necessarily putting ću directly next to the subject.

You may also see forms like:

• Pregledat ću svoje bilješke.

That is also correct. Both mean the same thing.

Croatian often omits the subject pronoun when it is clear from the verb form.

Here, ću already tells you the subject is I, so ja is not necessary.

• (Ja) ću pregledati svoje bilješke. = I will review my notes.

Including ja is possible, but it usually adds emphasis:

• Ja ću pregledati svoje bilješke.
  = I will review my notes.

So the sentence without ja is the normal, natural version.

Večeras usually means tonight or this evening, depending on context.

It refers to the evening of the current day. In English, both translations may work:

• Večeras ću učiti. = I’ll study tonight / this evening.

In your sentence, tonight is probably the most natural English equivalent.

Svoje is the reflexive possessive pronoun, and it is very common in Croatian.

It is used when the possessor is the same as the subject of the sentence.

In this sentence:

• implied subject = I
• owner of the notes = also I

So Croatian prefers:

• svoje bilješke = my own notes

This sounds more natural than moje bilješke in many contexts.

A simple comparison:

• Pregledat ću svoje bilješke.
  = I’ll review my own notes. / I’ll review my notes.
• Pregledat ću moje bilješke.
  This is possible, but often sounds more marked or contrastive, as if distinguishing my notes from someone else’s.

So svoje is the normal choice here.

Bilješke is in the accusative plural.

That is because it is the direct object of the verb pregledati:

• pregledati što? = to review what?
• bilješke = notes

The noun bilješka means note. Its plural forms include:

• bilješke = nominative plural
• bilješke = accusative plural

So here the form happens to look the same as nominative plural, but its role in the sentence is accusative because it is the object.

Not exactly.

Pregledati usually means something like:

• to review
• to look over
• to go through
• sometimes to examine

In this sentence, review is the best match:

• Večeras ću pregledati svoje bilješke...
  = Tonight I’ll review my notes...

It is not quite the same as:

• čitati = to read
• učiti = to study / learn

So pregledati bilješke suggests checking or going over the notes, rather than studying in the broadest sense.

This is about aspect, which is very important in Croatian.

• pregledati = perfective
• pregledavati = imperfective

The perfective verb presents the action as a completed whole.
The imperfective verb presents it as ongoing, repeated, or habitual.

In your sentence, the speaker means a single planned action tonight:

• Tonight I’ll review my notes.

That naturally fits the perfective verb pregledati.

Compare:

• Večeras ću pregledati svoje bilješke.
  = Tonight I’ll review my notes. (one complete action)
• Svake večeri pregledavam svoje bilješke.
  = Every evening I review my notes. (habitual action)

The preposition prije means before, and it requires the genitive case.

So:

• prije + genitive

The noun ispit means exam. Its genitive singular is:

• ispita

So:

• prije ispita = before the exam

Other examples:

• prije škole = before school
• prije ručka = before lunch
• prije puta = before the trip

Yes. Croatian word order is fairly flexible, but not completely free.

Your sentence:

• Večeras ću pregledati svoje bilješke prije ispita.

is natural and neutral.

Other possible versions include:

• Pregledat ću svoje bilješke večeras prije ispita.
• Svoje bilješke pregledat ću večeras prije ispita.

These are all possible, but they may shift the focus slightly.

A key point is that the clitic ću tends to appear in second position, so word order changes must still respect that pattern.

Grammatically, prije ispita is singular genitive, so it literally means:

• before the exam

If the context is general, English might still sometimes translate it more loosely, but the Croatian form here is singular.

If you wanted before the exams (plural), you would use a plural genitive form instead.

A rough pronunciation guide is:

• Večeras ≈ VE-che-ras
• ću ≈ chu
• pregledati ≈ pre-gle-DA-ti
• svoje ≈ SVO-ye
• bilješke ≈ BIL-yesh-ke
• prije ≈ PRI-ye
• ispita ≈ IS-pi-ta

A smoother full approximation:

VE-che-ras chu pre-gle-DA-ti SVO-ye BIL-yesh-ke PRI-ye IS-pi-ta

A few helpful sound notes:

• č sounds like ch in church
• ć is softer than č, but many learners start with something close to ch
• j sounds like English y
• š sounds like sh
• je / ije often sound like ye / iye

Yes, it sounds completely natural.

It is a good example of several very common Croatian patterns:

• future tense with ću + infinitive
• omitted subject pronoun
• reflexive possessive svoje
• object in the accusative
• prije
  • genitive

So it is both grammatical and idiomatic:

• Večeras ću pregledati svoje bilješke prije ispita.
  = Tonight I’ll review my notes before the exam.