Introduction and Formation of the Imperfect Subjunctive

Welcome to the world of the Imperfect Subjunctive! 🎉

If you've mastered the Present Subjunctive, you already know the core concept: expressing subjectivity, doubt, wishes, and emotions. The Imperfect Subjunctive does the exact same thing, but it does it in the past! Think of it as the 'past tense version' of the subjunctive.

It’s used to talk about:
🔹 Past desires, recommendations or requests: 'She wanted me to call her.'
🔹 Doubts or emotions about past events: 'I was surprised that you came.'
🔹 Hypothetical situations, especially in 'if' clauses: 'If I were a millionaire...'

So, when do we use it? The triggers are very similar to the Present Subjunctive (WEIRDO verbs, impersonal expressions, etc.), but the key difference is that the main clause is in a past tense (like the Preterite, Imperfect, or Conditional).

➡️ Main verb in PAST TENSE + 'que' + Imperfect Subjunctive

Let's compare:
🔹 Example with Present Subjunctive: Quiero que vengas. (I want you to come.)
🔹 Example with Imperfect Subjunctive: Quería que vinieras. (I wanted you to come.)
See the shift? Quiero (present) triggers the present subjunctive, while Quería (past) triggers the imperfect subjunctive.

🛠️ How to Form the Imperfect Subjunctive

This might seem a bit unusual at first, but it has a very consistent, almost magical formula. There's one simple starting point for EVERY verb, regular or irregular.

📌 Step 1: Find the Preterite Tense
Take any verb and conjugate it to the third person plural (ellos/ellas/Ustedes) form of the Preterite tense.

• hablar -> hablaron
• comer -> comieron
• vivir -> vivieron
• tener (irregular) -> tuvieron
• decir (irregular) -> dijeron
• ir/ser (irregular) -> fueron

This 'ellos' preterite form is your golden key!

📌 Step 2: Drop the '-ron'
Now, simply remove the final '-ron' from that form to find your new stem.

• hablaron -> habla-
• comieron -> comie-
• tuvieron -> tuvie-
• dijeron -> dije-
• fueron -> fue-

📌 Step 3: Add the Endings
Here's the interesting part! Spanish gives you two complete sets of endings that mean the exact same thing. You can use them interchangeably. The '-ra' form is more common in Latin America, while the '-se' form is also widely used, especially in literature and in Spain.

The '-ra' endings:
yo -> -ra (hablara, comiera, tuviera)
tú -> -ras (hablaras, comieras, tuvieras)
él/ella/Ud. -> -ra (hablara, comiera, tuviera)
nosotros -> -ramos (habláramos, comiéramos, tuviéramos) <- Note the accent!
vosotros -> -rais (hablarais, comierais, tuvierais)
ellos/Uds.-> -ran (hablaran, comieran, tuvieran)

The '-se' endings:
yo -> -se (hablase, comiese, tuviese)
tú -> -ses (hablases, comieses, tuvieses)
él/ella/Ud. -> -se (hablase, comiese, tuviese)
nosotros -> -semos (hablásemos, comiésemos, tuviésemos) <- Note the accent!
vosotros -> -seis (hablaseis, comieseis, tuvieseis)
ellos/Uds.-> -sen (hablasen, comiesen, tuviesen)

⚠️ Important Note on 'Nosotros': The accent mark on the nosotros form is crucial! It always falls on the vowel immediately preceding the ending (-áramos, -iéramos, -ásemos, -iésemos).

Let's see it in action in some sentences:

🔸 Wishes/Requests: El profesor pidió que nosotros hiciéramos / hiciésemos la tarea.
(The teacher asked that we do the homework.)

🔸 Emotions: Me sorprendió que no me llamaras / llamases.
(It surprised me that you didn't call me.)

🔸 Hypothetical 'Si' Clauses: Si yo fuera / fuese rico, compraría una isla.
(If I were rich, I would buy an island.)

This might feel like a lot at first, but the three-step formation rule is your best friend. Master the 'ellos' preterite form, and you can form the imperfect subjunctive for any verb. ¡Ánimo!