aktorką

In a sentence

• Moja siostra została aktorką.

  My sister became an actress.

  The word 'aktorką' is used as an instrumental case form of 'aktorka' (actress) in Polish and follows the verb 'została' (became) to denote what someone has become.

• Spotkałem ją na premierze, gdzie była aktorką w głównej roli.

  I met her at the premiere, where she was an actress in the leading role.

  Here, 'aktorką' is in the instrumental case used with the verb 'była' (was) to describe her role or occupation in a specific context.

• Mój przyjaciel marzy o tym, aby jego córka była aktorką.

  My friend dreams for his daughter to be an actress.

  In this sentence, 'aktorką' again is in the instrumental case paired with 'była' in a subjunctive form to express aspiration or desire for a future state involving the profession of actress.