Ovo je poslednji autobus za centar.

Ovo is a standalone demonstrative pronoun meaning this.

In Ovo je poslednji autobus za centar, it means something like This is the last bus to the center.

By contrast, ovaj is used directly with a masculine noun:

• ovaj autobus = this bus

So:

• Ovo je autobus. = This is a bus.
• Ovaj autobus je poslednji. = This bus is the last one.

A learner often notices that both relate to this, but they are used differently:

• ovo = stands alone
• ovaj = goes before a masculine noun

Je is the 3rd person singular present tense of biti, meaning to be.

So it means is.

• ovo = this
• je = is
• poslednji autobus za centar = the last bus to the center

A useful extra point: je is a clitic, so it usually appears in second position in the sentence. That is why Ovo je... sounds natural.

Serbian normally does not use articles like English a and the.

So autobus can mean:

• a bus
• the bus

The exact meaning comes from context.

In this sentence, the idea is definite in English: This is the last bus to the center. Serbian does not need a separate word for the to express that.

If Serbian speakers want to be more specific, they often use demonstratives such as:

• ovaj = this
• taj = that
• onaj = that over there

Because poslednji is an adjective, and adjectives in Serbian must agree with the noun in:

• gender
• number
• case

Here, autobus is:

• masculine
• singular
• nominative

So the adjective must also be masculine singular nominative:

• poslednji autobus

Compare:

• poslednji autobus = masculine
• poslednja stanica = feminine
• poslednje mesto = neuter

It is in the nominative singular.

That may surprise English speakers, because in English we do not really think about cases in sentences like this. But after to be, Serbian normally uses the nominative for the noun phrase that identifies something.

So in:

• Ovo je poslednji autobus za centar

the phrase poslednji autobus za centar is identifying what ovo is, and autobus stays in the nominative.

That is a very common question.

Za often does mean for, but with transport and destinations it can mean something closer to bound for or going to.

So:

• autobus za centar = bus to the center
• voz za Beograd = train to Belgrade
• karta za Novi Sad = ticket for Novi Sad / to Novi Sad

A very natural English translation is to, even though the Serbian preposition is za.

Because za here takes the accusative, and centar is a masculine inanimate noun.

For many masculine inanimate nouns in Serbian:

• nominative singular = accusative singular

So:

• nominative: centar
• accusative: centar

That is why you see:

• za centar

But the genitive form is different:

• centra

So centra is a real form, just not the one needed here.

Yes.

Serbian often expresses this idea with just a noun plus a destination phrase:

• autobus za centar
• voz za Niš
• let za Pariz

There is no need to add a verb like goes.

If you wanted to say it more explicitly, you could say:

• autobus koji ide u centar = the bus that goes to the center

But that is longer. In everyday speech, autobus za centar is perfectly natural.

Often yes, especially in everyday speech, but poslednji is the clearest choice here.

Both can mean last, but there is a nuance:

• poslednji = last, final
• zadnji = last, but also rear/back

Because zadnji can also mean the one at the back, some teachers prefer poslednji when the meaning is clearly final in a sequence.

So in this sentence, poslednji autobus is the safest and most standard way to say the last bus.

Some change is possible, but Ovo je poslednji autobus za centar is the most neutral and natural order for pointing something out.

This sentence starts with ovo because the speaker is identifying something directly:

• Ovo je... = This is...

A different order may sound marked or emphatic:

• Poslednji autobus za centar je ovo.

That is grammatically possible, but it is much less neutral and would usually be used only in a special context.

So for a learner, the best version to remember is:

• Ovo je poslednji autobus za centar.