Questions & Answers about Boca vode je na balkonu.
Because in boca vode (a bottle of water), the second noun is typically in the genitive singular to show “quantity/content of something.”
- voda = nominative singular (water)
- vode = genitive singular (of water)
This is very common after measure/container nouns: čaša vode (a glass of water), litara vode (a liter of water), komad kruha (a piece of bread).
Boca is in the nominative singular because it’s the subject of the sentence: Boca vode je… = The bottle of water is…
The verb (je) agrees with this subject.
Je is the present tense of biti (to be) for he/she/it (= is).
In Croatian, je is often used, but in some contexts it can be omitted, especially in casual speech or headlines:
- Boca vode je na balkonu. (neutral/standard)
- Boca vode na balkonu. (more “telegraphic,” context-dependent) For learners, it’s safest to include je in full sentences.