hemos olvidado

we have forgotten

→ haber
phrase Rare #38,686
we have forgotten A present perfect form of olvidar used for something the speaker and others have forgotten. When followed by de and an infinitive, it means “we have forgotten to do something.”
SP: Hemos olvidado las llaves en casa.
EN: We have forgotten the keys at home.

Hemos olvidado que tienes amigos de esa ciudad.

We've forgotten that you have friends from that city.

Está lloviendo y nos hemos olvidado de cerrar las ventanas.

It's raining, and we've forgotten to close the windows.

Oye, Edith, nos hemos olvidado de visitar la Biblioteca Nacional.

Hey Edith, we forgot to visit the National Library.

— Locuras de verano (1955)

Hemos olvidado algo.

We've forgotten something.

Creo que hemos olvidado algo.

I think we've forgotten something.

No lo hemos olvidado.

We haven't forgotten.

— Fresas salvajes (1957)