frustrar to frustratePast Perfect Tense / Pluscuamperfecto (de Indicativo)yohabía frustradotúhabías frustradoél / Ud.había frustradonosotroshabíamos frustradovosotroshabíais frustradoellos / Uds.habían frustrado
Other Tenses / Moods of Frustrar 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