Haber “To Have” or “There is/There are”
https://grammar.spanishintexas.org/verbs/haberThe 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. Auxiliary haber to form the preterit perfect:
Haber Conjugation in Spanish, Translation, Examples
www.thoughtco.com › conjugation-of-haber-3079627Nov 20, 2019 · The verb haber has two different uses and meanings, as well as two different conjugation patterns. Haber is used as an impersonal verb to mean "there is" or "there are," and it is also used as an auxiliary verb. This article includes haber conjugations as an impersonal verb in the indicative mood (present, past, conditional, and future), the subjunctive mood (present and past), the imperative mood, and other verb forms.