1.2 When to use Subjunctive
The Three Keys to Using the Subjunctive Mood
To trigger and use the Spanish subjunctive mood in a sentence, three essential conditions (referred to as "KEYS") must be met:
Key 1: A 'WEIRDO' Verb – The primary clause must contain a verb or expression that expresses Wish, Emotion, Impersonal Expression, Request/Recommendation, Doubt/Denial, or Ojalá.
Key 2: Two Different Subjects – The main independent clause and the subordinate dependent clause must feature two distinct subjects.
Key 3: The Word 'QUE' – The relative pronoun or conjunction "QUE" must link the main clause to the dependent clause.
Example Sentence Structure:
Yo quiero QUE tú estudies.
Subject 1: Yo
WEIRDO Verb: quiero (Wish/Want)
Link word: QUE
Subject 2: tú
Subjunctive Verb: estudies
The WEIRDO Acronym Categories and Verbs
The acronym WEIRDO represents the six main categories of triggers that require the use of the subjunctive mood when the other two keys are present.
W – Wish / Will
Verbs that express desires, wants, hopes, requirements, or permissions:
desear: to wish / wantesperar: to hopeinsistir en: to insistnecesitar: to needpermitir: to permitpreferir (ie): to preferprohibir: to prohibit / forbidquerer (ie): to want
E – Emotion
Verbs and expressions that state emotional reactions, feelings, or psychological states:
alegrarse de: to be gladestar (contento, etc.) de: to be happy, etc.preocuparse de: to worry aboutsentir (ie): to be sorrytener miedo de: to be afraid ofgustar*: to likemolestar*: to bothersorprender*: to surprise
I – Impersonal Expressions
Impersonal phrases that express opinions, value judgments, or necessity:
es bueno (malo): it's good (bad)es importante: it's importantes (im)posible: it's im(possible)es lógico: it's logicales mejor: it's betteres necesario: it's necessaryes ridículo: it's ridiculouses una lástima: it's a shame
R – Request & Recommendation
Verbs utilized to advise, ask, order, or suggest actions to others:
pedir (i): to requestrecomendar (ie): to recommendsugerir (ie): to suggest
D – Doubt / Denial
Expressions expressing uncertainty, skepticism, or negation:
dudar: to doubtes dudoso: it's doubtfulno creer: not to believeno pensar: not to thinkno estar seguro(a) de: not to be sureno es cierto: it's not trueno es verdad: it's not true
O – Ojalá
A word of Arabic origin defined as God willing, let's hope that, I hope that, or if only.
Special Rule 1: Requires only ONE subject.
Special Rule 2: The word QUE is optional.
Example with QUE: Ojalá que ellos vengan a la fiesta.
Example without QUE: Ojalá ellos vengan a la fiesta.
Subjunctive vs. Indicative Moods
Selecting between the subjunctive and indicative moods depends on whether an expression communicates uncertainty/doubt or factual belief/certainty.
Doubt/Denial (Subjunctive) vs. Certainty/Belief (Indicative)
Expression Type | Mood Required | Trigger Expressions |
|---|---|---|
Doubt & Denial | Subjunctive |
|
Certainty & Belief | Indicative |
|
Impersonal Expressions Taking the Indicative: VOCES
While impersonal expressions generally trigger the subjunctive, expressions of truth, certainty, and factual reality take the INDICATIVE. These are remembered using the VOCES acronym:
V –
verdad(e.g., es verdad – it is true)O –
obvio(e.g., es obvio – it is obvious)C –
cierto/claro(e.g., es cierto – it is true / es claro – it is clear)E –
evidente(e.g., es evidente – it is evident)S –
seguro(e.g., es seguro – it is certain/sure)
Subjunctive vs. Infinitive Usage
To use the subjunctive, all three KEYS must be present. If there is no subject change (only 1 subject present), the subjunctive cannot be used; the verb must remain in the INFINITIVE form.
Single Subject Rule: 1 Subject = INFINITIVE (No "QUE").
Example: Yo quiero IR a la fiesta. (Subject = Yo; Main verb = quiero; Infinitive = IR).
Practice Exercises and Complete Solutions
Practice Set 1: Subjunctive Practice
Dudo que él pueda (poder) llegar a tiempo. [Category: Doubt / Denial (D)]
Ellos recomiendan que ella viva (vivir) en la ciudad. [Category: Request / Recommendation (R)]
Mis padres esperan que yo saque (sacar) una buena nota. [Category: Wish / Will (W)]
Es bueno que ellos jueguen (jugar) el fútbol. [Category: Impersonal Expression (I)]
Ellos desean que nosotros vayamos (ir) al partido hoy. [Category: Wish / Will (W)]
Es necesario que tú estudies (estudiar) para el examen. [Category: Impersonal Expression (I)]
Preferimos que ellos coman (comer) bien. [Category: Wish / Will (W)]
Ojalá no llueva (llover) mañana. [Category: Ojalá (O)]
Me preocupo de que haya (haber) una tormenta hoy. [Category: Emotion (E)]
Queremos que ella tenga (tener) cuidado. [Category: Wish / Will (W)]
Es importante que ustedes se laven (lavarse) las manos. [Category: Impersonal Expression (I)]
La profesora pide que nosotros no durmamos (dormir) en la clase. [Category: Request / Recommendation (R)]
Es una lástima que él esté (estar) solo. [Category: Impersonal Expression / Emotion (I)]
Mi mamá no piensa que yo me despierte (despertarse) a tiempo. [Category: Doubt / Denial (D)]
Al médico le gusta que ellos hagan (hacer) ejercicio. [Category: Emotion (E)]
El guía sugiere que nosotros visitemos (visitar) el parque. [Category: Request / Recommendation (R)]
No es verdad que tú siempre almuerces (almorzar) comida rápida. [Category: Doubt / Denial (D)]
Yo necesito que ustedes traigan (traer) el pastel. [Category: Wish / Will (W)]
Su papá insiste en que ella practique (practicar) el piano. [Category: Wish / Will (W)]
Ojalá nosotros nos divirtamos (divertirse) en la fiesta. [Category: Ojalá (O)]
Practice Set 2: Subjunctive vs. Indicative
Ella no duda que yo canto (cantar) bien. (Indicative:
no dudarexpresses certainty)Pienso que la casa es (ser) muy vieja. (Indicative:
pensarexpresses belief)No creemos que el perro sea (ser) muy simpático. (Subjunctive:
no creerexpresses disbelief)No es cierto que nosotros vayamos (ir) con ustedes. (Subjunctive:
no es ciertoexpresses denial)No pensamos que él sepa (saber) la respuesta. (Subjunctive:
no pensarexpresses doubt)No es verdad que tú tengas (tener) un examen hoy. (Subjunctive:
no es verdadexpresses denial)No estoy seguro de que haga (hacer) calor mañana. (Subjunctive:
no estar seguro deexpresses uncertainty)No es dudoso que ellas compran (comprar) mucha ropa. (Indicative:
no es dudosoexpresses certainty)Ellos dudan que él reciba (recibir) el mensaje de texto. (Subjunctive:
dudarexpresses doubt)Es evidente que ellos están (estar) muy cansados. (Indicative:
es evidenteis a VOCES certainty expression)Es dudoso que yo llegue (llegar) a tiempo. (Subjunctive:
es dudosoexpresses doubt)No es dudoso que tú bailas (bailar) bien. (Indicative:
no es dudosoexpresses certainty)
Practice Set 3: Subjunctive vs. Infinitive
Ellos esperan venir (venir) a la clase hoy. (Infinitive: 1 subject)
Es importante estudiar (estudiar) para el examen. (Infinitive: Impersonal without
que/ no change of subject)Prefiero que tú escribas (escribir) en la pizarra. (Subjunctive: 2 subjects +
que)Es necesario que nosotros escuchemos (escuchar) al profesor. (Subjunctive: 2 subjects +
que)Es possible que yo comprenda (comprender) la lección. (Subjunctive: 2 subjects +
que)Es lógico almorzar (almorzar) en la cafetería. (Infinitive: General statement without
que)Queremos servir (servir) la pizza esta noche. (Infinitive: 1 subject)
¿Te alegras de que ella esté (estar) contenta? (Subjunctive: 2 subjects +
que)Deseo que tú te diviertas (divertirse) con los amigos. (Subjunctive: 2 subjects +
que)Es bueno leer (leer) el libro de texto. (Infinitive: General statement without
que)A él le gusta correr (correr). (Infinitive: 1 subject)
Él está contento de recibir (recibir) el regalo. (Infinitive: 1 subject with preposition
de)
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