made a mistake
Nosotros cometimos un error enorme.
We made a huge mistake.
I think we made a mistake.
Creo, que cometimos un error saliendo de la Comarca, Pippin.
I think we made a mistake leaving the Shire, Pippin.
— El señor de los anillos: Las dos torres (2002)
Debemos admitir que cometimos un error.
We must admit that we made a mistake.