Up to now every verb you have learned has been in the indicative — the mood of facts and reality. The subjunctive is different: it is the mood of wishes, doubts, emotions and things that are not (yet) real. English barely uses it ("I suggest he be on time"), so it feels new — but it follows clear patterns, and once you spot its triggers you will hear it everywhere.
The indicative states what is. The subjunctive expresses your attitude toward something that may or may not happen: what you want, feel, doubt, or hope. It almost always lives in a second clause introduced by que, after a first clause that colours it with emotion or uncertainty.
Sé que estudias mucho. — I know that you study a lot. (fact → indicative)
Quiero que estudies mucho. — I want you to study a lot. (wish → subjunctive)
The recipe is friendly: take the yo form of the present indicative, drop the -o, and add the "opposite" vowel endings. -ar verbs take -e endings; -er/-ir verbs take -a endings.
| Person | hablar → habl- | comer → com- | vivir → viv- |
|---|---|---|---|
| yo | hable | coma | viva |
| tú | hables | comas | vivas |
| él/ella/usted | hable | coma | viva |
| nosotros | hablemos | comamos | vivamos |
| vosotros | habléis | comáis | viváis |
| ellos/ustedes | hablen | coman | vivan |
Because it starts from the yo form, stem changes and irregular yo forms carry over: tener (tengo) → tenga, hacer (hago) → haga, decir (digo) → diga, salir (salgo) → salga.
Six verbs don't follow the yo-form rule and must be learned directly. A common mnemonic is DISHES: Dar, Ir, Ser, Haber, Estar, Saber.
| Verb | Subjunctive stem/forms |
|---|---|
| dar | dé, des, dé, demos, deis, den |
| ir | vaya, vayas, vaya, vayamos, vayáis, vayan |
| ser | sea, seas, sea, seamos, seáis, sean |
| haber | haya, hayas, haya, hayamos, hayáis, hayan |
| estar | esté, estés, esté, estemos, estéis, estén |
| saber | sepa, sepas, sepa, sepamos, sepáis, sepan |
The classic memory aid for the triggers is WEIRDO. If the main clause expresses one of these and a change of subject follows que, use the subjunctive.
| Letter | Trigger | Example |
|---|---|---|
| W | Wishes | Quiero que vengas. — I want you to come. |
| E | Emotions | Me alegro de que estés aquí. — I'm glad you're here. |
| I | Impersonal expressions | Es importante que llegues a tiempo. — It's important that you arrive on time. |
| R | Recommendations | Te recomiendo que descanses. — I recommend that you rest. |
| D | Doubt / Denial | Dudo que sea verdad. — I doubt it's true. |
| O | Ojalá & wishing | Ojalá que llueva. — I hope it rains. |
The subjunctive needs a change of subject across que. If the subject stays the same, use an infinitive instead. Quiero salir — I want to leave (same person). Quiero que salgas — I want you to leave (two people). No change of subject, no que, no subjunctive.
Ojalá que tengas un buen día. — I hope you have a good day.
Espero que te guste el regalo. — I hope you like the gift.
No creo que sea difícil. — I don't think it's difficult.
Es mejor que descanses hoy. — It's better that you rest today.
Que tengas un buen fin de semana. — Have a good weekend. (a very common fixed farewell)
Choose indicative or subjunctive, and explain the trigger.
The word ojalá comes from Arabic law šā' Allāh ("if God wills"), a linguistic fingerprint of nearly eight centuries of Arabic influence in Spain. It is used constantly and warmly across the Spanish-speaking world — sometimes with que, sometimes without — and reaching for it naturally is a small sign that your Spanish is maturing.
Write the present subjunctive.
Certainty takes the indicative; doubt/denial takes the subjunctive.