Veterinar vakciniše psa u ambulanti.

Because psa is the accusative singular form of pas (dog).

In this sentence, pas is the direct object of the verb vakciniše (vaccinates / is vaccinating), so it must go into the accusative.

A very important Serbian rule is that masculine animate nouns use the genitive-looking form in the accusative singular:

• pas = nominative
• psa = accusative

So:

• Pas trči. = The dog is running.
• Veterinar vakciniše psa. = The vet is vaccinating the dog.

Veterinar is the subject of the sentence, so it stays in the nominative singular.

The nominative is the basic dictionary form, and it is typically used for the person or thing doing the action.

Here:

• Veterinar = the vet
• vakciniše = vaccinates
• psa = the dog

So veterinar is in nominative because the vet is the one performing the action.

Ambulanti is in the locative singular.

It appears after the preposition u, which can mean in or into, depending on the case:

• u + locative = in / at a place
• u + accusative = into a place

Since this sentence describes location, not motion, Serbian uses the locative:

• u ambulanti = in the clinic / at the clinic

The noun is:

• ambulanta = clinic
• u ambulanti = in the clinic

It means in the clinic or at the clinic.

In context, ambulanta usually refers to a clinic, office, or outpatient practice, not necessarily a large hospital.

With veterinar, the phrase naturally suggests a veterinary clinic.

Depending on context, English might translate it as:

• in the clinic
• at the clinic
• in the vet’s office

Vakciniše is the 3rd person singular present tense form of the verb vakcinisati / vakcinisati se related verb family meaning to vaccinate.

It agrees with veterinar, which is singular:

• ja vakcinišem = I vaccinate
• ti vakcinišeš = you vaccinate
• on/ona vakciniše = he/she vaccinates

So Veterinar vakciniše psa literally means:

• The vet vaccinates the dog or, depending on context,
• The vet is vaccinating the dog

No. Serbian does not have articles.

So:

• veterinar can mean a vet or the vet
• psa can mean a dog or the dog
• ambulanti can mean a clinic or the clinic

The exact meaning depends on context.

That is why one Serbian sentence can often be translated into English in more than one natural way:

• The vet is vaccinating the dog in the clinic.
• A vet vaccinates a dog in a clinic.

Yes. Serbian word order is more flexible than English word order because cases show grammatical roles.

The neutral order here is:

• Veterinar vakciniše psa u ambulanti.

But other orders are possible, for example:

• U ambulanti veterinar vakciniše psa. = emphasizes the location
• Psa vakciniše veterinar u ambulanti. = emphasizes the dog
• Veterinar psa vakciniše u ambulanti. = also possible, with a slightly different focus

Even when the order changes, the cases still tell you who is doing what:

• veterinar = subject
• psa = object
• u ambulanti = location

Because Serbian usually does not need subject pronouns unless they are emphasized.

The verb ending already tells you the person and number, and here the noun veterinar is already present as the subject.

So:

• Veterinar vakciniše psa. is perfectly complete.
• Adding on (he) would usually sound unnecessary unless you want contrast or emphasis.

For example:

• On vakciniše psa, a ne tehničar. = He is vaccinating the dog, not the technician.

It can be used for animals too, especially when the context already makes that clear.

Since the sentence begins with Veterinar, most learners will understand u ambulanti here as in the veterinary clinic.

If you want to be more explicit, Serbian could say:

• u veterinarskoj ambulanti = in the veterinary clinic

But in many everyday situations, u ambulanti is enough if the veterinary context is obvious.

A rough pronunciation guide for an English speaker is:

Veterinar vakciniše psa u ambulanti
veh-teh-ree-NAR vak-tsee-NEE-sheh psa oo am-boo-LAN-tee

A few helpful notes:

• v is like English v
• c in Serbian is like ts
• š is like English sh
• u is like oo in food
• r is rolled or tapped more than in English

So vakciniše sounds roughly like vak-tsee-NEE-sheh.

Yes, in many contexts the Serbian present tense can correspond to either:

• vaccinates
• is vaccinating

Which English translation sounds best depends on the situation.

For example:

• as a general statement: The vet vaccinates dogs in the clinic.
• describing something happening now: The vet is vaccinating the dog in the clinic.

Serbian often leaves this distinction to context, while English usually has to choose one form.

Yes, absolutely.

That version is more explicit:

• u ambulanti = in the clinic
• u veterinarskoj ambulanti = in the veterinary clinic

The longer version may be useful if the context is unclear, but if everyone already knows you are talking about a vet, u ambulanti is very natural.

The three most useful things are:

1. Cases matter

   • veterinar = nominative subject
   • psa = accusative object
   • ambulanti = locative after u

2. No articles

   • Serbian does not use a / an / the

3. Word endings show function

   • English depends heavily on word order
   • Serbian often shows meaning through endings instead

So this sentence is a very good example of how Serbian grammar works:

• who does the action
• who receives the action
• where it happens

all shown mainly by case forms.