Plata, radno vreme i smene su važni uslovi zaposlenja.

Because the sentence has a plural subject overall: Plata, radno vreme i smene = salary, working hours, and shifts.

In Serbian, the verb to be must agree with the subject:

• je = is (singular)
• su = are (plural)

Since there are three things being listed, Serbian uses su.

They are in the nominative case.

That is because they are part of the sentence’s subject:

• plata = salary
• radno vreme = working hours / working time
• smene = shifts

In Serbian, the subject of the sentence is normally in the nominative.

Because uslovi is masculine plural nominative, and the adjective must agree with it.

• uslov = condition
• uslovi = conditions
• važan = important

Agreement here is:

• masculine plural nominative: važni uslovi

So:

• važni matches uslovi
• both are masculine plural nominative

Because važni describes uslovi, not the three items in the list directly.

The structure is basically:

Plata, radno vreme i smene
= salary, working hours, and shifts

su važni uslovi zaposlenja
= are important conditions of employment

So the sentence is saying that those three things are conditions, and those conditions are important.

That is why važni agrees with uslovi.

Zaposlenja is the genitive singular form of zaposlenje.

• zaposlenje = employment / job / being employed
• uslovi zaposlenja = conditions of employment

This is a very common Serbian structure: one noun followed by another noun in the genitive to show a relationship.

Examples:

• cena proizvoda = the price of the product
• uslovi rada = working conditions
• uslovi zaposlenja = conditions of employment

So zaposlenja is used because it means of employment.

You should think of it as a fixed expression.

• radno = work-related / working
• vreme = time

Together, radno vreme means working hours, work schedule, or working time, depending on context.

Even though it is made of two words, it functions as a standard phrase in Serbian.

Because smene means shifts, in the plural.

The singular is:

• smena = shift

The plural is:

• smene = shifts

In this sentence, the speaker is talking about shifts in general as one of the employment conditions, so the plural sounds natural.

Yes, absolutely.

That version is also natural and means the same thing:

• Plata, radno vreme i smene su važni uslovi zaposlenja.
• Važni uslovi zaposlenja su plata, radno vreme i smene.

The difference is mainly focus:

• starting with Plata, radno vreme i smene... puts attention on those items first
• starting with Važni uslovi zaposlenja... puts attention first on the idea of important employment conditions

Serbian word order is more flexible than English word order.

Because in Serbian, just like in normal English list style, you usually do not put a comma before i when i means and.

So:

• Plata, radno vreme i smene

This is the normal way to write a three-item list in Serbian.

Not always exactly, but it is often translated that way.

Plata usually means pay, salary, or wage, depending on context. In everyday use, it is the standard word for what a worker earns.

So in this sentence, salary is a good translation, but in some contexts pay might sound more natural.

Grammatically, vreme is singular, even though in English we often translate the whole phrase as working hours, which looks plural.

So:

• radno vreme is grammatically singular
• but the whole list is still plural overall because it includes three items:
  • plata
  • radno vreme
  • smene

That is another reason the verb is su, not je.

Yes. Depending on context, uslovi zaposlenja can mean:

• conditions of employment
• terms of employment
• sometimes even employment conditions

All of these are good translations. The best one depends on the tone and context.

In a formal or HR-related context, terms/conditions of employment is especially natural.