infiltrar Imperfect Subjunctive Conjugation
infiltrar — to infiltrate
The imperfect subjunctive of 'infiltrar' (infiltrara/infiltrase) is used for past hypotheticals, wishes, or doubts, often following 'si' (if).
infiltrar Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
Use the imperfect subjunctive for hypothetical situations in the past, or to express wishes and doubts that were unreal or unlikely in the past. It's common in 'if' clauses describing a condition that didn't happen or was unlikely. For 'infiltrar', you might say 'If I had infiltrated...' or 'I wish I had infiltrated...'.
Notes on infiltrar in the Imperfect Subjunctive
The imperfect subjunctive of 'infiltrar' is regular, with two forms for each person (-ra and -se endings), like 'infiltrara' and 'infiltrase'. The -ra form is generally more common in everyday speech.
Example Sentences
Si yo hubiera infiltrado la fiesta, habría visto a todos.
If I had infiltrated the party, I would have seen everyone.
yo
Ojalá tú infiltraras el club secreto.
I wish you would infiltrate the secret club.
tú
Él actuaba como si infiltrara la conversación.
He acted as if he were infiltrating the conversation.
él/ella/usted
Nosotros habríamos ido si ustedes se infiltraran con nosotros.
We would have gone if you all had infiltrated with us.
ellos/ellas/ustedes
Me pidieron que me infiltrara en la organización.
They asked me to infiltrate the organization.
yo
Common Mistakes
Mistake: Using the imperfect indicative instead of the imperfect subjunctive.
Correct: Say 'Si yo infiltraba...' is incorrect. Use 'Si yo infiltrara...' or 'Si yo infiltrase...'.
Why: Hypothetical or counterfactual conditions require the subjunctive mood.
Mistake: Confusing the -ra and -se endings.
Correct: Both 'infiltrara' and 'infiltrase' are correct, but 'infiltrara' is more common.
Why: While both are grammatically correct, learners often get stuck on which to use or incorrectly think only one is right.
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Related Tenses
Present
yo: infiltro
The present tense of 'infiltrar' (infiltro, infiltras, infiltra, infiltran) describes current or habitual actions.
Preterite
yo: infiltré
The preterite of 'infiltrar' is regular: infiltré, infiltaste, infiltró, infiltró, infiltrasteis, infiltraron.
Imperfect
yo: infiltraba
The imperfect of 'infiltrar' (infiltraba, infiltrabas, infiltraba, infiltrábamos, infiltrabais, infiltraban) describes ongoing or habitual past actions.
Future
yo: infiltraré
The future tense of 'infiltrar' (infiltraré, infiltrarás, infiltrará, etc.) is used for actions that will happen.
Conditional
yo: infiltraría
The conditional of 'infiltrar' (infiltraría, infiltrarías, infiltraría, etc.) expresses hypotheticals ('would') and polite requests.
Present Subjunctive
yo: infiltre
The present subjunctive of 'infiltrar' (infiltre, infiltres, infiltremos, infiltréis, infiltren) is used for wishes, doubts, and emotions.
Affirmative Imperative
yo: infiltra
Use the imperative for direct commands with 'infiltrar': infiltra (tú), infiltre (usted), infiltremos (nosotros), infiltrad (vosotros), infiltren (ustedes).
Negative Imperative
yo: no infiltres
Form negative commands for 'infiltrar' using 'no' + present subjunctive: no infiltres (tú), no infiltre (usted), no infiltremos (nosotros), no infiltréis (vosotros), no infiltren (ustedes).