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SpanishConjugationSubjunctive

Hacer (to do) · Subjunctive

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Hacer in the Spanish present subjunctive (presente de subjuntivo) is: yo haga, tú hagas, él/ella/usted haga, nosotros/as hagamos, vosotros/as hagáis, ellos/ellas/ustedes hagan. The present subjunctive of hacer appears after triggers of doubt, emotion, desire, or hypothesis ('quiero que hagas', 'es importante que haga'), and in negative commands ('¡no lo hagas!'). The stem switches to 'hag-' across all persons.

hacer conjugation in the Present Subjunctive (Presente de subjuntivo)
To DoHacer
I do
yo haga
you do
tú hagas
he/she do
él/ella/usted haga
we do
nosotros/as hagamos
you do
vosotros/as hagáis
they do
ellos/ellas/ustedes hagan
Examples

Hacer (to do) in context

Sentences that use hacer in the subjunctive. Tap each to hear it.

Es necesario que haga mis deberes hoy.

It is necessary that I do my homework today.

Quiero que hagas lo correcto.

I want you to do the right thing.

Espero que haga sol mañana.

I hope it is sunny tomorrow.

Es importante que hagamos ejercicio.

It is important that we exercise.

Quiero que hagáis las paces.

I want you to make peace.

Dudo que hagan la reserva a tiempo.

I doubt they will make the reservation in time.

Tip

Working with the subjunctive

The subjunctive isn't a tense — it's a mood. It signals that the speaker views the action as uncertain, desired, or evaluated rather than asserted as fact. Triggers come in four families: WEIRDO (Wishes, Emotion, Impersonal expressions, Recommendations, Doubt, Ojalá) is the standard mnemonic. When you see "que" after one of these triggers, the verb that follows is almost always subjunctive. The irregular subjunctive stem comes from the yo form of the present indicative — learn "hago" and you know "haga" is the subjunctive stem.

Questions

Frequently asked questions

How do you conjugate hacer in the present subjunctive?
The present subjunctive of hacer is: yo haga, tú hagas, él/ella/usted haga, nosotros/as hagamos, vosotros/as hagáis, ellos/ellas/ustedes hagan. The stem 'hag-' is the same one used in the present indicative yo form ('hago') — every irregular subjunctive stem in Spanish is derived from the yo form of the present.
When do I need to use the subjunctive of hacer?
Use it after triggers of doubt, emotion, will, or impersonal expressions: 'Espero que hagas un buen trabajo' (I hope you do a good job), 'Dudo que haga sol mañana' (I doubt it will be sunny tomorrow), 'Es necesario que hagamos algo' (It's necessary we do something). Negative commands also use the subjunctive: '¡No hagas eso!' (Don't do that!).
Why is 'haga' so different from the indicative 'hace'?
Spanish irregular subjunctive stems always come from the yo form of the present indicative, not from the él form. Hacer → yo hago → subjunctive stem 'hag-'. The same rule produces tener (tengo → tenga), salir (salgo → salga), and decir (digo → diga). Knowing the yo form gives you the entire subjunctive.
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