Learn Croatian: Većina prijatelja danas ne radi. - Most friends are not working today.

Prijatelja is in the genitive plural case, which translates to "of friends". In Croatian, the genitive plural for regular nouns almost always ends in -a. The sentence literally says "The majority of friends...", so the genitive case is required here.

Why is the verb radi singular if there are multiple friends?

The verb must agree with the subject of the sentence, which is većina (the majority). Because većina is grammatically a singular feminine noun, the verb takes the singular form radi. Literally, the Croatian sentence says "The majority of friends is not working today."

Does većina always require the genitive case?

Yes! Words that express quantity, like većina (most/majority), malo (a little), or mnogo (a lot), always force the noun that follows them into the genitive case. Since we are talking about multiple friends, we use the genitive plural.

How does the negation work in ne radi?

To make a verb negative in Croatian, you simply put the word ne right in front of it. Unlike in English where we use helping verbs like "do not" or "are not", in Croatian you just place ne before the conjugated verb as a separate word: ne radi (is not working).