When you bump someone in the street you say, desculpa! This is actually short for, me desculpa por favor. The verb is DESCULPAR – to excuse. The word, CULPA comes from this verb and means, fault. present indicativedesculpar to forgive, apologizeeudesculpovocê, ele, eladesculpanósdesculpamosvocês, eles, elasdesculpam Complete conjugation.