introducir Present Conjugation
introducir — to put in
The present tense of introducir is irregular in the 'yo' form (introduzco), while the rest follow standard -ir patterns.
introducir Present Forms
When to Use the Present
Use this to talk about things you are currently inserting, putting in, or introducing (like a topic or a person) as a general habit or right now.
Notes on introducir in the Present
This is a 'zco' verb. For the 'yo' form, the 'c' changes to 'zc' to keep the soft sound. The other forms (tú, él, etc.) are regular.
Example Sentences
Yo introduzco la tarjeta en el cajero.
I insert the card into the ATM.
yo
¿Introduces los datos en el sistema?
Are you entering the data into the system?
tú
El profesor introduce un tema nuevo hoy.
The teacher is introducing a new topic today.
él/ella/usted
Common Mistakes
Mistake: yo introduzo
Correct: yo introduzco
Why: Verbs ending in -ducir always take the 'zco' ending in the first person present.
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Related Tenses
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.
Negative Imperative
yo: no introduzcas
The negative imperative always uses the 'introduzc-' stem from the subjunctive.