usar to usePresent Perfect Tense / Perfecto de Indicativoyohe usadotúhas usadoél / Ud.ha usadonosotroshemos usadovosotroshabéis usadoellos / Uds.han usado
Other Tenses / Moods of Usar 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