Subjunctive of Haber (Haya)

Haber is the auxiliary verb behind every compound tense in Spanish, which makes its subjunctive one of the most useful to know. Its present subjunctive stem is hay-, and the full conjugation is irregular from the start.

Conjugation

SubjectPresent Subjunctive
yohaya
hayas
él / ella / ustedhaya
nosotroshayamos
ellos / ellas / ustedeshayan

Don't confuse haya (from haber) with halla (from hallar, "to find") or with allá ("over there"). The three words are pronounced almost identically in Latin America.

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Memory cue: ha-berhay-a. Drop the -er, replace it with -a, and you have the first-person stem. The whole table is then just regular -a endings.

Use 1: Present Perfect Subjunctive

The most frequent use of haya is as the auxiliary of the present perfect subjunctive, which combines haya with the past participle of the main verb.

  • haya hablado — "that I have spoken"
  • hayas comido — "that you have eaten"
  • haya salido — "that he has left"

This tense describes a completed action inside a clause that triggers the subjunctive, and it's typically used when the action happened before the time frame of the main clause.

Espero que hayas comido antes de venir.

I hope you've eaten before coming.

No creo que haya llegado todavía.

I don't think he has arrived yet.

Es posible que hayamos perdido las llaves.

It's possible that we've lost the keys.

Me alegra que hayan terminado el proyecto a tiempo.

I'm glad they've finished the project on time.

Use 2: Impersonal Haya (Instead of Hay)

In the indicative, hay is the impersonal form of haber that means "there is" or "there are." In the subjunctive, that form becomes haya, and it follows the same invariable rule: it never changes for number, even when the thing being discussed is plural.

Es posible que haya un problema con el servidor.

It's possible that there's a problem with the server.

Dudo que haya suficiente comida para todos.

I doubt there's enough food for everyone.

Ojalá que no haya mucho tráfico mañana.

I hope there isn't a lot of traffic tomorrow.

Notice that haya stays singular in form even though "tráfico" or "comida" is being described, and the same is true when the noun is plural:

No creo que haya muchas personas en la fiesta.

I don't think there are many people at the party.

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Just like hay in the indicative, the subjunctive haya is used impersonally and doesn't change form. Never write hayan meaning "there are" — even a hundred items still take haya.

The Full Auxiliary Paradigm

If you already know the indicative of haber, the comparison helps make the subjunctive stick.

SubjectIndicativeSubjunctive
yohehaya
hashayas
él / ella / ustedhahaya
nosotroshemoshayamos
ellos / ellas / ustedeshanhayan

More Examples

Me alegra mucho que hayas venido a visitarme.

I'm very happy that you've come to visit me.

Es increíble que hayan construido la casa en seis meses.

It's incredible that they've built the house in six months.

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When you see a main clause that is in the present, and you want to describe an action that is already complete inside the subordinate clause, reach for haya + past participle. That structure is the present perfect subjunctive and is extremely common in everyday speech.

Continue with saber and dar, the last two irregulars in this section.

Related Topics

  • Subjunctive of SerB1Ser has a fully irregular present subjunctive: sea, seas, sea, seamos, sean.
  • Subjunctive of IrB1Ir has a completely irregular present subjunctive built on the stem vay-.
  • Subjunctive of Saber and DarB1Two short but tricky irregular verbs in the subjunctive: saber (sepa) and dar (dé).