Questions & Answers about Mój brat chce pracować na etat w tej firmie.
Why is it mój brat and not mojego brata?
Because mój brat is the subject of the sentence, so it stays in the nominative case.
- mój = my
- brat = brother
In Polish, the subject is normally in the nominative:
- Mój brat chce pracować. = My brother wants to work.
Forms like mojego brata are used in other cases, for example:
- Nie widzę mojego brata. = I don’t see my brother.
Here, mojego brata is in the genitive/accusative-type form used after negation.
Why is mój used here? Does it agree with brat?
Yes. Mój is a possessive adjective, and it must agree with the noun it describes.
Since brat is:
- masculine
- singular
- nominative
the correct form is mój.
Compare:
- mój brat = my brother
- moja siostra = my sister
- moje dziecko = my child
- moi bracia = my brothers
So mój is not a fixed form meaning only my; it changes depending on the noun.
Why do we say chce pracować with an infinitive?