Kaput je obično na stolici, a ne na krevetu.

• kaput = coat
• je = is
• obično = usually
• na = on
• stolici = chair in the form needed after na for location
• a = and / while / whereas / but depending on context
• ne = not
• krevetu = bed in the form needed after na for location

So the sentence means something like: The coat is usually on the chair, not on the bed.

In Serbian, short unstressed words like je often follow the second-position clitic rule. That means they usually come after the first stressed element in the clause.

Here:

• Kaput is the first element
• so je comes right after it

That is why you get:

• Kaput je obično na stolici...

This is very normal Serbian word order.

Because after na when it means location (on something), Serbian uses the locative case.

So:

• stolica → na stolici = on the chair
• krevet → na krevetu = on the bed

A useful rule is:

• na + accusative = movement onto something
• na + locative = being on something

Compare:

• Kaput je na stolici. = The coat is on the chair.
• Stavio sam kaput na stolicu. = I put the coat onto the chair.

Because na is used for being on a surface, while u is used for being in or inside something.

So:

• na stolici = on the chair
• na krevetu = on the bed
• u sobi = in the room
• u ormaru = in the wardrobe

A coat can be na stolici if it is lying or hanging on the chair, not inside it.

Here a links two contrasting ideas:

• na stolici
• a ne na krevetu

So it means something like:

• and not
• while not
• rather than
• but not

It is often used for a contrast, but usually softer than ali.

Compare:

• i = and (simple addition)
• a = and/but/while (contrast or comparison)
• ali = but (stronger contradiction)

In this sentence, a is very natural because it contrasts two locations.

Because ne is the negation word not, and here it is negating the phrase na krevetu.

So:

• a ne na krevetu = and not on the bed

In Serbian, ne is often written separately, except with some verb forms where it combines in writing:

• ne znam = I don’t know
• nije = is not

Here it stays separate because it is simply negating the prepositional phrase.

Yes. Serbian has no articles like English a and the.

So kaput can mean:

• a coat
• the coat

The exact meaning depends on context.

In this sentence, English would probably use the coat, but Serbian just says kaput.

Yes, obično can move, but some positions sound more natural than others.

In:

• Kaput je obično na stolici.

the meaning is The coat is usually on the chair.

This is natural because:

• kaput is the topic
• je stays in second position
• obično follows naturally after the verb

You may also hear other word orders for emphasis, but this one is neutral and standard.

Yes. The word obično shows that this is a usual or habitual situation, not necessarily what is happening at this exact moment.

So:

• Kaput je na stolici. = The coat is on the chair.
• Kaput je obično na stolici. = The coat is usually on the chair.

The second sentence describes what normally happens.

Yes. That is a very natural alternative.

• Kaput nije na krevetu, nego na stolici.
• The coat is not on the bed, but on the chair.

This version sounds more like a correction:

• not there,
• but here.

The original sentence,

• Kaput je obično na stolici, a ne na krevetu, sounds more like a general contrast between the two places.

A simple English-friendly guide:

• stolici ≈ STO-lee-tsee
• krevetu ≈ kreh-VEH-too

A few useful pronunciation notes:

• c in Serbian is like ts
• e is usually a clear eh
• Serbian spelling is very phonetic, so words are usually pronounced much as they are written

Kaput is masculine.

That matters because Serbian nouns belong to grammatical genders, and gender affects:

• adjective forms
• pronouns
• some verb-related agreement in other constructions

In this sentence, the form kaput is just the basic singular form, and the verb je works for he/she/it is, so gender is not very visible here. But elsewhere it matters a lot.

For example:

• ovaj kaput = this coat
• nov kaput = a new coat

The masculine forms ovaj and nov match kaput.