Questions & Answers about Novčanik je na stolu; juče si ga stavila tamo.
Because Serbian distinguishes between location and destination after prepositions like na.
- na stolu = on the table / located on the table
- na sto = onto the table / movement toward the table
In this sentence, the wallet is already there, so Serbian uses the locative case:
- sto = table
- stolu = on the table / at the table area, after na for location
So:
- Novčanik je na stolu = The wallet is on the table.
Stolu is the locative singular of sto.
The pattern here is:
- na + locative for location
- na + accusative for motion toward a place/surface
So:
- na stolu = on the table
- na sto = onto the table
This is a very common Serbian pattern and worth memorizing early.
Ga is the short accusative form of on / for a noun.