tenisista

In a sentence

• Tenisista wygrał ważny turniej.

  The tennis player won an important tournament.

  Here, 'tenisista' is the subject of the sentence, referring to a male tennis player.

• Zaprosiłem tenisistę do rozmowy o jego karierze.

  I invited the tennis player to talk about his career.

  In this context, 'tenisistę' is the object of the sentence in the accusative case, meaning 'tenisista' as a male tennis player in the direct object form.

• Jestem tenisistą od pięciu lat.

  I have been a tennis player for five years.

  Here, 'tenisistą' is in the instrumental case, used to describe the subject's role or occupation.