prezesowi

In a sentence

• Przekazałem dokumenty prezesowi.

  I handed the documents to the president.

  Here, 'prezesowi' is the dative form of 'prezes', indicating the recipient of the action, i.e., the person to whom the documents are handed.

• Podziękowałem prezesowi za jego wkład w projekt.

  I thanked the president for his contribution to the project.

  In this sentence, 'prezesowi' is again in the dative case, showing the person who is being thanked.

• Przysłuchiwałem się uwagom prezesowi podczas spotkania.

  I listened to the president's comments during the meeting.

  Here, 'prezesowi' follows the verb 'przysłuchiwać się' (to listen or attend to), which takes the dative case in Polish.