oublie

In a sentence

• N'oublie pas de fermer la porte.

  Don't forget to close the door.

  Here, 'oublie' is used in its imperative form to command someone not to forget something.

• J'ai oublié de lui faire un cadeau.

  I forgot to give him a present.

  In this sentence, 'oublié' is the past participle of 'oublier', used to indicate that someone forgot an action in the past.

• Elle oublie souvent ses clés à la maison.

  She often forgets her keys at home.

  Here, 'oublie' is in the present tense and indicates a habit or repeated action of forgetting something.