mantener to maintain, to keepFuture Perfect / Futuro Perfectoyohabré mantenidotúhabrás mantenidoél / Ud.habrá mantenidonosotroshabremos mantenidovosotroshabréis mantenidoellos / Uds.habrán 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