to introduce, to insert
hablamos regular endingpienso stem changetengo irregularbusqué spelling change
Presente · What happens now or habitually
Introduzco la tarjeta en el cajero.
I insert the card in the ATM.
Pretérito · A completed action in the past
El profesor introdujo el tema.
The teacher introduced the topic.
Imperfecto · Ongoing or habitual past; "used to"
Los españoles introducían nuevas plantas en la isla.
The Spanish were bringing new plants to the island.
Futuro · What will happen
El gobierno introducirá cambios.
The government will introduce changes.
Condicional · What would happen
Yo introduciría más ejemplos en la clase.
I'd add more examples to the class.
Pretérito perfecto · Has/have done
Han introducido una regla nueva.
They've introduced a new rule.
Pluscuamperfecto · Had done
La empresa había introducido nuevos productos.
The company had introduced new products.
Futuro perfecto · Will have done
Rarely used with this verb.
Condicional perfecto · Would have done
Habríamos introducido otro cambio.
We would have introduced another change.
Presente de subjuntivo · Wishes, doubts, emotions about the present or future
Quiero que introduzcas tu contraseña.
I want you to enter your password.
Imperfecto de subjuntivo (-ra) · Hypotheticals and past wishes; the common form
Me pidió que introdujera el código.
She asked me to enter the code.
Imperfecto de subjuntivo (-se) · Same meaning as -ra; more literary
Pedí que introdujesen cambios.
I asked them to make changes.
Pretérito perfecto de subjuntivo · Subjunctive for something that has happened
Dudo que haya introducido el código.
I doubt he has entered the code.
Pluscuamperfecto de subjuntivo · Contrary-to-fact past: "if I had..."
Si hubieras introducido el código, se habría abierto.
If you had entered the code, it would have opened.
Imperativo afirmativo · Commands: do it!
Introduce la moneda aquí.
Insert the coin here.
Imperativo negativo · Commands: don't do it!
No introduzcas la tarjeta todavía.
Don't insert the card yet.