We say "lo lamento" instead, or just "perdón". I'm Sorry (from the film Casino). I know that to say "I'm sorry" in spanish is lo siento or perdon, but what if you were trying to say something like "i'm sorry that your dog. . Aventura · Song · Stream im sorry by Elena Zeng AKA Chini TAcchini on desktop and mobile. Play over million tracks for free on SoundCloud. Mob Hits for Gangsters - Original Music from. Listen to I'm Sorry on Spotify. Brenda Lee. Spanish translation of lyrics for I'm Sorry (From "Casino") by Brenda Lee.