rezerwistów

In a sentence

• W poniedziałek odbędzie się spotkanie rezerwistów.

  On Monday, a reservists' meeting will take place.

  Here, 'rezerwistów' functions as the plural form of the genitive case used to indicate a meeting involving reservists.

• Grupa rezerwistów pomagała przy organizacji wydarzenia.

  A group of reservists helped with organizing the event.

  In this sentence, 'rezerwistów' is used as the plural form in the genitive case to denote the group involved in assisting with the event.

• Zaprosiliśmy rezerwistów na obiad po ćwiczeniach.

  We invited the reservists for lunch after the exercises.

  Here, 'rezerwistów' in the plural genitive case represents those who were invited to lunch after exercises.