colaborar to collaborate, to contribute toPresent Perfect Tense / Perfecto de Indicativoyohe colaboradotúhas colaboradoél / Ud.ha colaboradonosotroshemos colaboradovosotroshabéis colaboradoellos / Uds.han colaborado
Other Tenses / Moods of Colaborar Simple Tenses Present Tense Imperfect Tense Preterite (Past Tense) Future Tense Conditional Tense Subjunctive Tense Imperfect Subjunctive Future Subjunctive Imperative (Command) Past Participle & Gerund Compound Tenses Present Perfect Past Perfect Past Anterior (Preterite Perfect) Future Perfect Conditional Perfect Present Perfect Subjunctive Pluperfect Subjunctive Future Perfect Subjunctive