mantener to maintain, to keepPresent Perfect Tense / Perfecto de Indicativoyohe mantenidotúhas mantenidoél / Ud.ha mantenidonosotroshemos mantenidovosotroshabéis mantenidoellos / Uds.han mantenido
Other Tenses / Moods of Mantener 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