- Auxiliary: It is used as an auxiliary in compound tenses ( present perfect, pluperfect, etc.), meaning to have done something. With this use, it is always followed by a past participle. Note, even though haber here translates as to have, it does not express ownership, that use of to have is translated as verb tener.
- Existential: It is used in its existential form to mean there is/are.
Most grammar books will tell you that the existential haber has only one form in each tense: hay, había, hubo, habría, habrá; unlike English where the existential there + to be agrees with the noun that follows: there is a dog on the porch versus there are two dogs on the porch. However in many dialects of Spanish and especially in spoken Spanish the forms of haber also agrees with the noun. So sometimes you will see the forms habían, hubieron, habrían, habrán used as the existential form when the noun that follows is plural. Compare the two variations of the same sentence below.
Prescriptive grammar
Había muchos pájaros allá miles de pájaros y de todas clases. There were many birds there, thousands of birds and of all kinds.
Variant
Irregular forms of haber
Haber in both its regular and existential forms is an irregular in the following tenses: present tense, preterit, and present subjunctive.
Present
| haber to have | |
|---|---|
| yo he | nosotros/as hemos |
| tú has | |
| él/ella/usted ha | ellos/as/ustedes han |
| existential form: hay |
Auxiliary haber to form the present perfect:
Existential haber:
Preterit
The preterit of haber can be used along with the past participle to form a tense called preterit perfect or past anterior, which is extremely rare; it appears almost exclusively in literature but not spoken Spanish. However, the existential form hubo does exist in both spoken and written Spanish.
| haber to have | |
|---|---|
| yo hube | nostros/as hubimos |
| tú hubiste | |
| él/ella/usted hubo | ellos/as/ustedes hubieron |
| existential form: hubo |
Auxiliary haber to form the preterit perfect:
Cuando hube agotado todos los argumentos, él me miró, irónico…When I had exhausted all my arguments, he looked at me ironically…
Existential haber:
Hubo una tormenta bien fuerte.There was a very big storm.
Present Subjunctive
| haber to have | |
|---|---|
| yo haya | nostros/as hayamos |
| tú hayas | |
| él/ella/usted haya | ellos/as/ustedes hayan |
| existential form: haya |
Auxiliary haber to form the present perfect subjunctive:
Existential haber:
In some communities, the present subjunctive of the verb haber is conjugated differently, as seen in the table below. This conjugation is considered an archaic form that has been preserved in some communities, often rural ones across South, Central and North America.
| haber to have | |
|---|---|
| yo haiga | nostros/as haigamos |
| tú haigas | |
| él/ella/usted haiga | ellos/as/ustedes haigan |
| existential form: haiga |
Auxiliary haber:
Existential haber: