Questions & Answers about Na stolu je torta, a na torti su sveće.
Because after na when it means on in the sense of location, Serbian uses the locative case.
So:
- sto → na stolu
- torta → na torti
The basic forms you see in dictionaries are usually nominative singular, but prepositions often require other cases.
They belong to different noun patterns.
- sto is a masculine noun, and masculine/neuter nouns often take -u in the locative singular: na stolu
- torta is a feminine noun ending in -a, and these often take -i in the locative singular: na torti
So the case is the same, but the ending depends on the noun type.
Not always. With na, the case depends on whether you mean location or movement toward something.
- location → locative
Na stolu je torta. = the cake is on the table - movement/destination → = I am putting the cake onto the table