Questions & Answers about Po pracy kupuję arbuza, ananasa i dwie brzoskwinie.
Because po meaning after takes the locative case here. The base noun is praca (work), and its locative singular form is pracy.
So:
- praca = work
- po pracy = after work
This is a very common phrase in Polish.
Polish often drops subject pronouns because the verb ending already tells you who is doing the action.
- kupuję = I buy / I am buying
So ja is not needed. You can add ja only for emphasis or contrast:
- Ja kupuję, a on gotuje. = I’m buying, and he’s cooking.
Polish does not have articles. There is no separate word for a, an, or the.
So:
- kupuję arbuza can mean I’m buying a watermelon
- and in the right context it could also mean I’m buying the watermelon
The exact meaning comes from context, not from an article.