Ako ništa ne razumeš, pročitaj poruku još jednom.

Ako means if. It introduces a condition:

• Ako ništa ne razumeš = If you don’t understand anything
• pročitaj poruku još jednom = read the message once again

So the whole sentence has the structure If X, then do Y.

Because Serbian normally uses negative concord. That means words like ništa (nothing / anything in negative sentences) go together with a negative verb.

So Serbian says:

• ništa ne razumeš = literally you understand nothing not
• natural English: you don’t understand anything

This is completely normal in Serbian. Similar patterns are:

• Nikoga ne vidim. = I don’t see anybody.
• Nikad ne dolazi. = He/She never comes.

So after ništa, you should expect ne with the verb.

In this sentence, the natural English translation is anything because the whole clause is negative:

• Ako ništa ne razumeš = If you don’t understand anything

But literally, ništa is nothing. In negative Serbian sentences, nothing often corresponds to English anything:

• Ne razumem ništa. = I don’t understand anything.

So the exact English word depends on the sentence, but the Serbian form stays ništa.

Because the sentence is addressing you singular, and razumeš is the 2nd person singular present form of razumeti / razumeti (to understand).

A quick comparison:

• razumem = I understand
• razumeš = you understand
• razume = he/she/it understands

The subject ti (you) is omitted because Serbian often leaves subject pronouns out when the verb ending already shows who the subject is.

So:

• (ti) ne razumeš = you don’t understand

Because Serbian often drops subject pronouns when they are clear from the verb form.

Here, razumeš already tells you the subject is you singular, and pročitaj is also a command to you singular. So ti is unnecessary unless you want emphasis.

Compare:

• Ako ništa ne razumeš, pročitaj poruku još jednom. = neutral
• Ako ti ništa ne razumeš... = more marked, often contrastive or emphatic

In ordinary speech and writing, leaving out ti is very common.

Pročitaj is the imperative of pročitati, which is a perfective verb meaning to read through / to read completely.

That fits well here because the speaker means:

• Read the message one more time
  not
• Be reading the message

By contrast, čitaj comes from čitati (imperfective) and often suggests ongoing or repeated reading, like read! / keep reading!

So:

• pročitaj poruku = read the message (all the way through / once)
• čitaj poruku = read the message / be reading the message (more process-focused)

In instructions like this, Serbian often prefers the perfective imperative.

Yes. Pročitaj is the imperative singular form, used when telling one person to do something.

So:

• pročitaj = read! (to one person)

If you were speaking to more than one person, you would say:

• pročitajte = read! (to you plural / formal you)

In this sentence, it sounds like a straightforward instruction or suggestion.

Because poruku is in the accusative case, which is used for the direct object of the verb.

The base form is:

• poruka = message (nominative)

But after a verb like pročitati (to read), the thing being read is the direct object, so you use the accusative:

• pročitati poruku = to read the message

For many feminine nouns ending in -a, the accusative singular ends in -u:

• knjiga → knjigu
• poruka → poruku

Još jednom means once again, one more time, or again.

Literally:

• još = more / still / yet
• jednom = once / one time (instrumental form used adverbially here)

Together:

• pročitaj poruku još jednom = read the message one more time

This is a very common expression in Serbian.

Because the sentence begins with a subordinate clause introduced by ako:

• Ako ništa ne razumeš, = If you don’t understand anything,
• pročitaj poruku još jednom. = main clause

Just like in English, when a conditional clause comes first, it is normally separated by a comma.

Yes, Serbian word order is fairly flexible, although some versions sound more natural than others.

The given sentence is very natural:

• Ako ništa ne razumeš, pročitaj poruku još jednom.

You might also hear slight variations, for example:

• Ako ne razumeš ništa, pročitaj poruku još jednom.

That is also understandable and natural. However, ništa ne razumeš is a very common and idiomatic order.

The original version sounds smooth and standard.

Both can relate to understanding, but they are not always identical.

• razumeti = to understand
• shvatiti = to grasp / realize / understand fully

In this sentence, razumeš is the most natural choice if the idea is if something in the message is unclear to you.

If you said:

• Ako ništa ne shvataš...

that would sound more like If you’re not getting it at all or If you can’t grasp anything. It is possible, but a bit different in nuance.

So razumeš is the straightforward, neutral verb here.

A useful quick guide:

• č sounds like ch in church
• š sounds like sh in shoe
• ž sounds like s in measure

So roughly:

• ništa ≈ NEE-shta
• razumeš ≈ rah-zoo-MESH
• pročitaj ≈ PRO-chee-tie
• još ≈ yosh

The spelling in Serbian is quite regular, so once you learn the letters, pronunciation becomes much easier.