dziennikarza

In a sentence

• Widziałem dziennikarza w telewizji.

  I saw the journalist on TV.

  In this sentence, the word 'dziennikarza' is used as the masculine singular accusative form of the noun 'dziennikarz', denoting a journalist who is the object of the verb.

• Musisz słuchać wskazówek dziennikarza.

  You need to listen to the journalist's advice.

  Here, 'dziennikarza' is the masculine singular genitive form of 'dziennikarz', used to indicate possession or association, such as advice belonging to the journalist.

• Rozmawiałem dzisiaj z dziennikarza.

  I spoke with the journalist today.

  The preposition 'z' (with) typically requires the instrumental case in Polish, 'dziennikarzem' would be correct here; 'z dziennikarza' would be considered a grammatical error, demonstrating the importance of case usage.