Čekam prijateljicu ispred bolnice.

Because it is the direct object of čekam (I am waiting for), so it takes the accusative case.

• Nominative: prijateljica = a female friend
• Accusative: prijateljicu = a female friend as the object of the verb

For many feminine nouns ending in -a, the accusative singular ends in -u.

Because ispred (in front of) requires the genitive case.

So:

• Nominative: bolnica = hospital
• Genitive: bolnice = of the hospital / hospital after ispred

This is very common in Serbian: many prepositions always require a certain case, and ispred takes the genitive.

Ispred means in front of.

It is a preposition used for location. In this sentence, ispred bolnice means in front of the hospital.

Other examples:

• ispred škole = in front of the school
• ispred kuće = in front of the house

Because Serbian often omits subject pronouns when they are already clear from the verb form.

Čekam already means I am waiting / I wait, so ja is not necessary.

You could say:

• Čekam prijateljicu ispred bolnice.
• Ja čekam prijateljicu ispred bolnice.

Both are correct, but ja adds emphasis, as if you are stressing I.

It can mean both, depending on context.

Serbian does not usually make the same strict distinction that English does between I wait and I am waiting in the present tense. The form čekam can cover both ideas.

In a situation like this sentence, English would usually translate it as I am waiting.

The base form is čekati, which means to wait.

Čekam is the 1st person singular present tense form:

• ja čekam = I wait / I am waiting
• ti čekaš = you wait
• on/ona čeka = he/she waits

Yes. Prijateljica means female friend, while prijatelj means male friend.

So this sentence specifically says the speaker is waiting for a woman or girl who is their friend.

Yes. Serbian word order is fairly flexible.

The neutral order here is:

• Čekam prijateljicu ispred bolnice.

But you could also say:

• Ispred bolnice čekam prijateljicu.
• Prijateljicu čekam ispred bolnice.

These versions are still grammatical, but the emphasis changes:

• Ispred bolnice... emphasizes the location
• Prijateljicu čekam... emphasizes who is being waited for

Because Serbian does not have articles like English a/an and the.

So bolnica can mean:

• a hospital
• the hospital

The exact meaning depends on context. In this sentence, English naturally translates it as the hospital.

A few useful pronunciation points:

• Č in Čekam sounds roughly like ch in church, but a bit firmer
• j sounds like English y
• lj is a soft sound, somewhat like lli in million for many English speakers
• c sounds like ts

So roughly:

• Čekam ≈ CHEH-kam
• prijateljicu ≈ pree-yah-TEL-yi-tsu

These are only rough English approximations, but they can help at first.

In Serbian, čekati usually takes a direct object without a preposition when you mean to wait for someone/something.

So the normal pattern is:

• čekam prijateljicu
• čekam autobus
• čekam brata

English uses wait for, but Serbian normally just uses čekati + accusative.

In some contexts, learners may see čekati na, but the plain direct-object pattern is the standard one for a sentence like this.

Čekati is imperfective.

That matters because imperfective verbs are normally used for:

• ongoing actions
• repeated actions
• general actions in the present

So čekam fits very naturally for I am waiting.

A perfective verb usually would not be used in the same simple present-tense way for an action happening right now.