mantener to maintain, to keepImperfect Subjunctive / Imperfecto de Subjuntivo – Version 1yomantuvieratúmantuvierasél / Ud.mantuvieranosotrosmantuviéramosvosotrosmantuvieraisellos / Uds.mantuvieranImperfect Subjunctive / Imperfecto de Subjuntivo – Version 2yomantuviesetúmantuviesesél / Ud.mantuviesenosotrosmantuviésemosvosotrosmantuvieseisellos / Uds.mantuviesen
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