Questions & Answers about Mój bilet powrotny jest drogi.
In Polish, possessive adjectives like mój agree with the gender and number of the noun.
- bilet is a masculine singular noun.
- The masculine singular form of my is mój.
Other forms of my are:
- moja – feminine singular (e.g. moja książka – my book)
- moje – neuter singular (e.g. moje okno – my window)
- moi – masculine personal plural (e.g. moi koledzy – my (male) friends)
- moje – non-masculine-personal plural (e.g. moje psy – my dogs)
So with bilet (masculine singular), you must use mój.