Must and Had to in Serbian - Serbian 401
There is a series of lessons in Serbian 401 course about Dragana, Zvonko and Boris. This is an introductory one where your task is to guess what they do for living based on the short text.
The first step would be to see which of the following modal verbs are missing in these three short texts:
MORATI (have to ) - SMETI (be allowed to) - MOĆI (can)
NE MORATI (not have to ) - NE SMETI (mustn't) - NE MOĆI (cannot)