Present Perfect Tense One of the compound tenses What is the present perfect tense? • The present perfect tense is used to describe what has or has not happened. How is the present perfect formed? • It is formed by using the present tense of haber with the past participle of the main verb. What is the present tense conjugation of haber? • Singular – – – – – Yo he Tú has Ud. ha Él ha Ella ha • Plural – Nosotros hemos – Uds. han – Ellos han – Ellas han What do the forms of haber mean? • The forms of haber are the equivalent of has or have in English. They are what we call “helping verbs” in English. What is a past participle? • A past participle is a form of a verb that cannot be used alone as a verb. • A past participle in English is the –ed form of most verbs. For regular verbs it looks just like the past tense form. – Por ejemplo: • Play played More on English past participles • Irregular past participles in English vary according to the verb. These do not look like the past tense of the verb. – Por ejemplo: • Write wrote written How is the past participle of the verb formed? • To form the past participle of most verbs in Spanish, take off the infinitive ending (-ar, -er, -ir) and add back –ado for –ar verbs and –ido for –er and –ir verbs. – Por ejemplo: • Hablar • Comer • Vivir hablado comido vivido Irregular past participles • Several verbs in Spanish have irregular past participles. These must be memorized. – – – – – – Abrir Cubrir Decir Descubrir Escribir Freír abierto cubierto dicho descubierto escrito frito More irregular past participles • • • • • • • • Hacer Morir Poner Resolver Romper Satisfacer Ver Volver hecho muerto puesto resuelto roto satisfecho visto vuelto More irregular past participles • When a prefix is added to an irregular verb, the past participle shows the same irregularity. – – – – – – – – Describir Deshacer Devolver Imponer Posponer Predecir Prever Revolver descrito deshecho devuelto impuesto pospuesto predicho previsto revuelto Accented past participles • -er and –ir verbs that have a stem ending in a vowel have an accent mark over the I in the past participle. – Caer – Creer – Leer – Oír – Traer caído creído leído oído traído Ir and ser • Even the past participles of ir and ser are regular. – Ir – Ser ido sido A few good things to know about present perfect tense • There are no stem changes in present perfect tense – in other words, don’t make stem changes in the past participles • The form of haber and the past participle are a unit that cannot be separated. Do not put negative words or anything between them. Handy clues to perfect tenses • Sometimes sentences will have a clue word or phrase that indicates a possible perfect tense situation. – Ya means already. – Todavía no means not yet. Ejemplos • Yo ya he visto esa película. I have seen that movie already. • Mercedes ha bailado el tango antes. Mercedes has danced the tango before. • Todavía no hemos comido en ese restaurante. We have not eaten in that restaurant yet. • ¿No has estudiado para el examen? You have not studied for the test? Practica • • • • • • • Yo/afeitarse esta mañana Tú/correr tres millas Elena y yo/dormirse en clase Nosotros/seguir las instrucciones Uds./poner el libro en la mesa Los estudiantes/ir al parque Marta y yo/morir de hambre