intervenir Present Subjunctive Conjugation
intervenir — to intervene
Intervenir is irregular in the present subjunctive, using the stem 'interveng-' for all persons.
intervenir Present Subjunctive Forms
When to Use the Present Subjunctive
Use this tense to express hopes, doubts, or requests regarding someone's involvement. It often follows phrases like 'es necesario que' or 'espero que' when talking about someone stepping into a situation.
Notes on intervenir in the Present Subjunctive
This tense follows the 'g-stem' pattern inherited from the present indicative 'intervengo'. All endings are consistent with regular -ir subjunctive verbs, but built on the 'interveng-' base.
Example Sentences
Espero que la policía intervenga pronto.
I hope the police intervene soon.
él/ella/usted
No quiero que tú intervengas en mi vida privada.
I don't want you to interfere in my private life.
tú
Es importante que nosotros intervengamos en la reunión.
It's important that we participate in the meeting.
nosotros
Common Mistakes
Mistake: Using 'interviena' instead of 'intervenga'.
Correct: intervenga
Why: Learners often try to apply the 'ie' stem-change from the present indicative, but this verb follows the 'go' verb pattern in the subjunctive.
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Related Tenses
Present
yo: intervengo
Intervenir is irregular in the present, featuring a 'g' in the 'yo' form and an 'ie' stem change in others.
Preterite
yo: intervine
Intervenir is highly irregular in the preterite, following the 'u-stem' pattern (intervin-).
Imperfect
yo: intervenía
The imperfect of intervenir is regular: intervenía, intervenías, intervenía...
Future
yo: intervendré
The future tense of intervenir uses the irregular stem 'intervendr-'.
Conditional
yo: intervendría
The conditional uses the irregular stem 'intervendr-' followed by regular -ía endings.
Imperfect Subjunctive
yo: interviniera
The imperfect subjunctive uses the irregular stem 'intervinier-' for all forms.
Affirmative Imperative
yo: intervén
The imperative uses the short form 'intervén' for the informal 'tú' command.
Negative Imperative
yo: no intervengas
The negative imperative always uses the present subjunctive forms with 'no'.