silbar to whistle; to booPast Anterior (Preterite Perfect) / Pretérito Anterioryohube silbadotúhubiste silbadoél / Ud.hubo silbadonosotroshubimos silbadovosotroshubisteis silbadoellos / Uds.hubieron 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