Questions & Answers about Autor je u katalogu.
Je is the 3rd person singular form of the verb biti (to be).
So:
- autor = author
- je = is
- u katalogu = in the catalog/catalogue
Together: Autor je u katalogu. = The author is in the catalog.
Because the preposition u usually requires the locative case when it means in or inside a place/location.
The noun katalog changes in the locative singular:
- katalog = nominative
- u katalogu = locative
So after u for location, you say:
- u katalogu = in the catalog
- u gradu = in the city
- u školi = in the school
Autor is in the nominative case, because it is the subject of the sentence.
In Autor je u katalogu:
- autor = who/what the sentence is about → subject → nominative
- u katalogu = where the author is → prepositional phrase in the locative