używany

In a sentence

• Kupiłem używany samochód.

  I bought a used car.

  Here, "używany" is used as an adjective describing the noun "samochód" (car), meaning "used" in the context of second-hand or previously owned.

• Ten podręcznik jest używany przez studentów.

  This textbook is used by students.

  In this sentence, "używany" is a past participle used as part of the passive voice, meaning that the textbook is being actively utilized by students.

• Na strychu znalazłem parę rzeczy, które nie były używane od lat.

  In the attic, I found a few items that had not been used for years.

  Here, "używane" serves as the plural form of the past participle, describing items that have not seen use for a long time.