Breakdown of Opis je na oglasniku.
biti
to be
na
at
oglasnik
a classified-advertising site
opis
a description
Questions & Answers about Opis je na oglasniku.
What does each word in Opis je na oglasniku do grammatically?
- Opis = description. Here it is the subject of the sentence and is in the nominative singular.
- je = is. This is the 3rd person singular present of biti (to be).
- na oglasniku = on the classifieds site / on the marketplace / in the classifieds. This is a prepositional phrase showing location.
So the structure is basically:
Opis + je + na oglasniku
The description + is + on the classifieds site
Why is it oglasniku and not oglasnik?
Because the preposition na can require the locative case when it means on / at in the sense of location.
The base form is:
- oglasnik = nominative
After na for location, it becomes:
- na oglasniku = on the classifieds site / in the classifieds
This is a normal pattern with many masculine nouns:
- grad → u gradu
- stol → na stolu
- oglasnik → na oglasniku
So oglasniku is the locative singular form.
Why is the preposition na used here instead of u?