silbar to whistle; to booFuture Perfect Subjunctive / Futuro Perfecto de Subjuntivoyohubiere silbadotúhubieres silbadoél / Ud.hubiere silbadonosotroshubiéremos silbadovosotroshubiereis silbadoellos / Uds.hubieren silbado
Other Tenses / Moods of Silbar 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