zapomnieć

In a sentence

• Zapomniałem zamknąć drzwi.

  I forgot to close the door.

  The verb 'zapomnieć' is used here to express forgetting to do a specific action.

• Nie mogę zapomnieć tej piosenki.

  I can't forget this song.

  In this sentence, 'zapomnieć' indicates the difficulty or impossibility of erasing a memory of something.

• Staram się zapomnieć o tym wydarzeniu.

  I am trying to forget about this event.

  Here, 'zapomnieć' reflects the intention or effort to remove a memory or impression of a particular occurrence.