Majstor će popraviti mašinu za pranje veša.

Će popraviti is the future tense in Serbian.

In this sentence, će is the future auxiliary, and popraviti is the infinitive to repair / to fix. Together they mean will repair.

For 3rd person singular:

• on će popraviti = he will repair
• ona će popraviti = she will repair
• ono će popraviti = it will repair

So Majstor će popraviti... literally means The repairman/craftsman will repair...

Because mašinu is the accusative singular form of mašina.

The verb popraviti takes a direct object, and direct objects in Serbian often go in the accusative case.

Here:

• mašina = a machine / the machine (nominative, dictionary form)
• mašinu = machine (accusative singular)

Since the washing machine is the thing being repaired, Serbian uses:

• Majstor će popraviti mašinu.

This is very common with feminine nouns ending in -a:

• žena → ženu
• kuća → kuću
• mašina → mašinu

Because veša is in the genitive case.

The phrase mašina za pranje veša literally means something like machine for washing laundry.

The noun pranje means washing, and after this kind of verbal noun, the thing being washed often appears in the genitive:

• pranje veša = washing of laundry / washing laundry

So:

• veš = laundry (basic form)
• veša = of laundry / laundry in genitive

This structure is very normal in Serbian:

• soba za sastanke = room for meetings
• četka za zube = toothbrush, literally brush for teeth
• mašina za pranje veša = washing machine

In this sentence, majstor usually means repairman, handyman, technician, or tradesman, depending on context.

It does not necessarily mean master in the English sense.

Common uses of majstor in Serbian include:

• someone skilled with repairs
• a craftsman
• a worker who fixes appliances, plumbing, electrical problems, etc.

So in this sentence, majstor is best understood as the repairman or the technician.

Because Serbian has no articles.

English distinguishes:

• a repairman
• the repairman

Serbian usually leaves that unspecified unless context makes it clear.

So majstor can mean:

• a repairman
• the repairman

And mašinu can mean:

• a machine
• the machine

You understand which one is meant from the situation, context, or emphasis.

This is one standard way to form the future tense in Serbian: future auxiliary + infinitive.

So:

• će popraviti = will repair
• će doći = will come
• će kupiti = will buy

In Serbian, especially in everyday speech, you may also hear a construction with da:

• Majstor će da popravi mašinu...

That also means The repairman will repair the washing machine, but the sentence you were given uses the very standard će + infinitive pattern.

Serbian clitics usually tend to stand near the beginning of the sentence, often in second position.

That is why you get:

• Majstor će popraviti mašinu za pranje veša.

Here, će comes right after the first word Majstor.

This is a normal Serbian word-order pattern. Clitics such as ću, ćeš, će, se, ga, je, mi often behave this way.

So even though English says The repairman will repair..., Serbian often places the future auxiliary after the first element:

• Majstor će...

Yes, popraviti is a perfective verb.

That means it presents the action as completed or as a single whole event: the repairman will fix it successfully.

By contrast, popravljati is imperfective and focuses more on:

• process
• repetition
• ongoing activity

Compare:

• Majstor će popraviti mašinu. = The repairman will fix the machine.
  The focus is on the completed result.
• Majstor će popravljati mašinu. = The repairman will be fixing the machine / will work on the machine.
  The focus is more on the process.

In this sentence, popraviti is the natural choice because a repair is usually seen as a completed task.

Yes, Serbian word order is fairly flexible, though not completely free.

The neutral order here is:

• Majstor će popraviti mašinu za pranje veša.

But you could also say:

• Mašinu za pranje veša će popraviti majstor.
• Majstor mašinu za pranje veša će popraviti.

These versions change the focus or emphasis, not the basic meaning.

For a learner, the given sentence is the safest and most natural neutral version.

Yes, it is a very common and natural expression for washing machine.

Literally it breaks down as:

• mašina = machine
• za = for
• pranje = washing
• veša = of laundry

So it literally means machine for washing laundry.

Serbian often builds compound meanings this way instead of using one single word.

English often puts nouns directly next to each other:

• washing machine
• laundry room
• tooth brush

Serbian usually prefers a structure with za + verbal noun / noun or a noun followed by another noun in a case form.

So instead of stacking nouns the way English does, Serbian says:

• mašina za pranje veša = washing machine
• četka za zube = toothbrush
• sredstvo za čišćenje = cleaning product

This is a very useful pattern to learn:

• X za Y often means X for Y.

These letters are important in Serbian pronunciation.

• š sounds like English sh in shoe
• ć is a soft sound, somewhat like the ty in tune in some accents, but palatalized and shorter

So:

• mašina sounds roughly like ma-SHEE-na
• veša sounds roughly like VEH-sha
• će has that soft ć sound, roughly chyeh or tyeh, though neither English spelling is exact

Also, Serbian spelling is very phonetic, so words are usually pronounced much as they are written.

Not exactly. In this phrase, veš is better understood as laundry.

While veš can refer to washed or washable clothing/textiles in general, in mašina za pranje veša the meaning is specifically laundry rather than just clothes.

So the most natural English translation is:

• washing machine

not

• machine for washing clothes

Even though the literal structure points in that direction.