desfallecer to become weak, wear outFuture Perfect / Futuro Perfectoyohabré desfallecidotúhabrás desfallecidoél / Ud.habrá desfallecidonosotroshabremos desfallecidovosotroshabréis desfallecidoellos / Uds.habrán desfallecido
Other Tenses / Moods of Desfallecer 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