introducir Negative Imperative Conjugation
introducir — to put in
The negative imperative always uses the 'introduzc-' stem from the subjunctive.
introducir Negative Imperative Forms
When to Use the Negative Imperative
Use this to tell someone NOT to insert or introduce something.
Notes on introducir in the Negative Imperative
All forms are identical to the present subjunctive forms preceded by 'no'.
Example Sentences
No introduzcas la mano en la máquina.
Don't put your hand in the machine.
tú
No introduzca objetos metálicos en el microondas.
Do not put metal objects in the microwave.
usted
No introduzcamos cambios todavía.
Let's not introduce changes yet.
nosotros
Common Mistakes
Mistake: no introduces
Correct: no introduzcas
Why: Negative commands must use the subjunctive, not the indicative.
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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.
Imperfect Subjunctive
yo: introdujera
This tense uses the 'j' stem from the preterite: introdujera, introdujeras, etc.
Affirmative Imperative
yo: introduce
The imperative uses 'introduce' for 'tú' and 'introduzca' for formal commands.