alterar to alter, change, disturb, upsetPresent Perfect Subjunctive / Perfecto de Subjuntivoyohaya alteradotúhayas alteradoél / Ud.haya alteradonosotroshayamos alteradovosotroshayáis alteradoellos / Uds.hayan alterado
Other Tenses / Moods of Alterar 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