introducir Imperfect Subjunctive Conjugation
introducir — to put in
This tense uses the 'j' stem from the preterite: introdujera, introdujeras, etc.
introducir Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
Use this for hypothetical situations or past requests, such as 'If I introduced a new rule...' or 'He asked me to put it in'.
Notes on introducir in the Imperfect Subjunctive
Like the preterite, this tense uses the 'j' stem. It never uses an 'i' after the 'j' (no 'introdujiera').
Example Sentences
Si yo introdujera el código, la puerta se abriría.
If I entered the code, the door would open.
yo
Me pidió que introdujera a los invitados.
He asked me to introduce the guests.
yo
Ojalá introdujeran más opciones en el menú.
I wish they would introduce more options on the menu.
ellos/ellas/ustedes
Common Mistakes
Mistake: introdujiera
Correct: introdujera
Why: The 'j' stem in Spanish drops the 'i' that usually appears in the -iera ending.
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Related Tenses
Present
yo: introduzco
The present tense of introducir is irregular in the 'yo' form (introduzco), while the rest follow standard -ir patterns.
Preterite
yo: introduje
The preterite of introducir is irregular, replacing the 'c' with a 'j' (introduje, introdujiste, introdujo).
Imperfect
yo: introducía
The imperfect of introducir is completely regular: introducía, introducías, introducía.
Future
yo: introduciré
The future tense of introducir is regular: just add endings to the infinitive.
Conditional
yo: introduciría
The conditional of introducir is regular: introduciría, introducirías, etc.
Present Subjunctive
yo: introduzca
The present subjunctive uses the 'introduzc-' stem for all persons.
Affirmative Imperative
yo: introduce
The imperative uses 'introduce' for 'tú' and 'introduzca' for formal commands.
Negative Imperative
yo: no introduzcas
The negative imperative always uses the 'introduzc-' stem from the subjunctive.