The Present Perfect Tense for irregular verbs has the same format as the Present Perfect for regular verbs.
Recall that the Present Perfect Tense is a compound tense, because it requires an auxiliary verb, haber (to have) and the past participle of the verb. As in English, the verb haber always comes before the present participle.
Present tense of Haber + Past Participle
However, the key is to understand that certain verbs in Spanish maintain an irregular conjugation pattern.
In this first set of irregular verbs, an “o" is dropped from the infinitive and replaced with “ue."
For example, the verb volver (to return) is an irregular verb with an irregular conjugation in the Present Tense,
as well as for its Past Participle. This is evident in the following sentence:
Cada año, Rodrigo vuelve a su país para celebrar la Navidad.
(Each year, Rodrigo returns to his country to celebrate Christmas.)
In the above example, volver, an -er verb has the vowel “o" in the second to last syllable. When it is conjugated
in the present tense, we changed the “o" into a “ue." Volver and other verbs in this class maintain the pattern of
converting the “o" to a “ue."
The past participle for -ar and -er verbs that mirror volver will include two changes: In the penultimate syllable,
"o" is still changed to “ue." However, the ending, or stem, also changes. This transition is seen below:
Volver --à “v" + “ue" + lto = vuelto (returned)
With this in mind, what follows is the conjugation for the Present Perfect for volver.
Yo he vuelto (I have returned) nosotros hemos vuelto (we have returned)
tú has vuelto (you have returned) ellos han vuelto (they have returned)
él ha vuelto (he has returned) ellas han vuelto (they have returned)
ella ha vuelto (she has returned) ustedes han vuelto (you have returned)
usted ha vuelto (you have returned)
Here is an example of volver in the Present Perfect Tense:
Cada año, Rodrigo ha vuelto a su país para celebrar la Navidad.
(Each year, Rodrigo has returned to his country to celebrate Christmas.)
Other examples of this class of irregular verbs are as follows:
Infinitive Present Indicative Past Participle Present Perfect
Morirse (to die) me muero muerto me he muerto
(I die) (died) (I have died)
Ponerse (to put/place) me pongo puesto me he puesto
(I put on) (put) (I have put on)
Although the present tense of ponerse, does not follow the conversion from “o" to “ue," the conversion
already described does occur in the past participle.
Here are a few more examples:
Mariana y yo hemos vuelto de la playa.
(Mariana ad I have returned from the beach.)
Se ha muerto el hermano de Julio.
(Julio’s brother has died.)
Ellos se han puesto en la fila.
(They have placed themselves on the line.]
*It should be noted that the verb volar (to fly) should not be confused with volver (to return).
Although volar is an irregular verb in the present indicative tense, its Past Participle volado
(flown) is not irregular. Therefore, volar in the Present Perfect Tense also has a regular conjugation.
For example:
Vuelo a la capital hoy.
(I fly to the capital today.)
Roberto ha volado a la capital hoy.
(Roberto has flown to the capital today.)
The conjugation of volar in the Present Perfect Tense mirrors regular -ar verbs.
See the following comparison:
He volado. He hablado.
(I have flown) (I have spoken)
The above distinction is an important one. In Spanish there are verbs that are usually irregular,
but that are conjugated as regular verbs in the Present Perfect Tense because their past participle is regular.
What follows are a few examples of this:
Infinitive Verb Present Indicative Past Participle Present Perfect