Questions & Answers about Obuka počinje sutra.
Obuka is in the nominative singular because it is the subject of the sentence, the thing that is doing the action of starting.
It is also a feminine noun. A very common clue is the ending -a, which often marks feminine nouns in Serbian.
Because the subject obuka is singular. Serbian verbs agree with the subject in person and number.
So:
- obuka = one training course/session
- therefore počinje = it starts
Serbian does not need a separate word for it here.
In Serbian, the present tense is often used for a planned, scheduled, or expected future event, especially when a time word like sutra makes the future meaning clear.
So Obuka počinje sutra is perfectly natural, just like English The training starts tomorrow.
The form počinje comes from the verb , which is the verb meaning in an ongoing or general sense.