Questions & Answers about Hej, mam pytanie.
In Polish, the subject pronoun is often omitted because the verb already shows who is doing the action.
- mam = I have
- so ja is not necessary
You could say Ja mam pytanie, but that usually adds emphasis, like I have a question (as opposed to someone else). In a neutral sentence, Mam pytanie sounds more natural.
Mam is a form of the verb mieć, which means to have.
Here it is in the 1st person singular present tense:
- mam = I have
So:
- mam pytanie = literally I have a question