Questions & Answers about Juče sam kupila novine u prodavnici.
This is the past tense in Serbian. It is normally made with:
- the present tense of biti (to be)
- plus the past active participle
So:
- sam = I am / auxiliary used for I in the past tense
- kupila = bought (feminine singular form)
Together, sam kupila means I bought.
Because the speaker is female.
In Serbian, the past participle agrees with the subject in gender and number:
- kupio sam = I bought (male speaker)
- kupila sam = I bought (female speaker)
- kupili smo = we bought (mixed group or all male)
- kupile smo = we bought (all female)
So kupila tells you that the person speaking is a woman.