Instruction: Spanish Past Subjunctive – Regular & Triggers
The past subjunctive (also known as the imperfect subjunctive) is a crucial part of advanced Spanish, used to express doubts, wishes, hypotheticals, or emotions about actions or events that took place in the past. It’s often triggered by the same expressions that trigger the present subjunctive but shifts the focus to past events.
This lesson provides an overview of how the past subjunctive is formed and used, setting the foundation for more in-depth exploration in subsequent lessons.
1. Formation of the Past Subjunctive
The past subjunctive is formed by taking the third-person plural form of the verb in the preterite tense, removing the -ron ending, and adding the appropriate past subjunctive endings.
Past Subjunctive Endings (Important: same endings are used for -ar, -er, and -ir verbs):
Yo | - ra | Nosotros | - ramos |
Tú (Juana, Juan) | - ras | Vosotros (informal Spain) | - rais |
Él/Ella/Ud. (Sra./Dr. García) | - ra | Ellos/Ellas/Uds. | - ran |
Hablar (to speak):
- Preterite (Ellos): habla
ron→ Past Subjunctive:
Yo | hablara (if) I spoke | Nosotros | *hablaramos (if) we spoke |
Tú (Juana, Juan) | hablaras (if) you spoke | Vosotros (informal Spain) | hablarais (if) you all spoke |
Él/Ella/Ud. (Sra./Dr. García) | hablara (if) he/she/you spoke | Ellos/Ellas/Uds. | hablaran (if) they/you all spoke |
Comer (to eat):
- Preterite (Ellos): comie
ron→ Past Subjunctive:
Yo | comiera (if) I ate | Nosotros | *comiéramos (if) we ate |
Tú (Juana, Juan) | comieras (if) you ate | Vosotros (informal Spain) | comierais (if) you all ate |
Él/Ella/Ud. (Sra./Dr. García) | comiera (if) he/she/you ate | Ellos/Ellas/Uds. | comieran (if) they/you all ate |
Vivir (to live):
- Preterite (Ellos): vivie
ron→ Past Subjunctive:
Yo | viviera (if) I lived | Nosotros | *viviéramos (if) we lived |
Tú (Juana, Juan) | vivieras (if) you lived | Vosotros (informal Spain) | vivierais (if) you all lived |
Él/Ella/Ud. (Sra./Dr. García) | viviera (if) he/she/you lived | Ellos/Ellas/Uds. | vivieran (if) they/you all lived |
Key Points:
- *The nosotros form in the past subjunctive always has an accent mark on the vowel before the subjunctive ending to maintain the correct stress (e.g., habláramos, comiéramos).
- There are two sets of endings for the past subjunctive (-ra and -se), but the -ra endings are far more commonly used in modern Spanish. We’ll learn more about the other past subjunctive in a different lesson.
2. When to Use the Past Subjunctive (Triggers)
The past subjunctive is used in subordinate clauses when the verb in the main clause is in a past tense, such as the preterite, imperfect, or conditional (though technically not a past tense). It expresses uncertainty, hypothetical situations, desires, or emotions that are related to past actions. Let’s explore this with examples using -er and -ir verbs.
Common Situations “Triggers” Where the Past Subjunctive is Used:
1. After Expressions of Doubt, Emotion, or Desire in the Past
When we express doubt, emotion, or desire about something that happened (or didn’t happen) in the past, the past subjunctive is used in the subordinate clause.
Dudaba que ellos comieran todo lo que preparé.
(I doubted that they ate everything I prepared.)Esperaba que tú aprendieras algo nuevo en la clase.
(I hoped that you learned something new in the class.)Era importante que nosotros vendiéramos la casa.
(It was important that we sold the house.)
2. In Hypothetical “If” Clauses (Si Clauses)
The past subjunctive is used in if-clauses to describe hypothetical situations that are unlikely or impossible. Remember, “si” clauses only use the subjunctive in the past, not the present.
Si ellos corrieran más rápido, ganarían la carrera.
(If they ran faster, they would win the race.)Si nosotros viviéramos cerca, nos veríamos más.
(If we lived nearby, we would see each other more often.)
3. To Express Wishes or Regrets About the Past
The past subjunctive is also used to express wishes or regrets about something that didn’t happen in the past, often introduced by ojalá or quisiera.
Ojalá que ellos entendieran la lección mejor.
(I wish they had understood the lesson better.)Quisiera que tú recibieras la carta más pronto.
(I wish you had received the letter sooner.)
4. After the Phrase “Como Si” (As If)
The past subjunctive is used after “como si” to describe actions that are imagined or contrary to fact.
Habla como si ellos vivieran en otro país.
(He speaks as if they lived in another country.)Ellos actúan como si corrieran una maratón.
(They act as if they were running a marathon.)
3. Other Common Triggers for the Past Subjunctive
The past subjunctive is triggered by many of the same expressions that trigger the present subjunctive, but in the context of past actions or states. Here are some common triggers:
- Dudar que (to doubt that)
- Esperar que (to hope that)
- Querer que (to want that)
- Temer que (to fear that)
- Negar que (to deny that)
- Es posible que (it’s possible that)
- Era necesario que (it was necessary that)
- No creer que (to not believe that)
- Ojalá que (I wish that)
4. Practice Exercise
Complete the sentences with the correct past subjunctive form of the verb in parentheses:
- Dudaba que tú __________ (tener) tiempo para el proyecto.
- Si yo __________ (ser) tú, no haría eso.
- Ella esperaba que nosotros __________ (ir) al concierto.
- Si ellos __________ (poder) ayudar, lo harían.
- Era posible que él __________ (saber) la respuesta.
Answers:
- Dudaba que tú tuvieras tiempo para el proyecto.
- Si yo fuera tú, no haría eso.
- Ella esperaba que nosotros fuéramos al concierto.
- Si ellos pudieran ayudar, lo harían.
- Era posible que él supiera la respuesta.
Conclusion
The past subjunctive is a key part of Spanish that allows you to express uncertainty, emotions, and hypotheticals related to the past. By understanding its formation and usage, you’ll be better equipped to communicate more nuanced ideas in Spanish. As you continue to learn, keep practicing the past subjunctive in different contexts to become more comfortable with its use.