obstruir Present Conjugation
obstruir — to block
Obstruir adds a 'y' in most forms: obstruyo, obstruyes, obstruye, obstruyen (but not nosotros/vosotros).
obstruir Present Forms
When to Use the Present
Use this to describe something that blocks a path right now or habitually, like a narrow door or a bad habit.
Notes on obstruir in the Present
This is a 'boot verb' variant where 'y' is added to all forms except nosotros and vosotros.
Example Sentences
Esa columna obstruye la visión del escenario.
That column blocks the view of the stage.
él/ella/usted
Yo no obstruyo el progreso de la empresa.
I am not blocking the company's progress.
yo
Nosotros nunca obstruimos el paso peatonal.
We never block the crosswalk.
nosotros
Common Mistakes
Mistake: obstruimos (with a y)
Correct: obstruimos
Why: The 'nosotros' and 'vosotros' forms do not get the extra 'y' in the present indicative.
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Related Tenses
Preterite
yo: obstruí
Obstruir is irregular in the 3rd person (él/ellos), changing 'i' to 'y': obstruyó, obstruyeron.
Imperfect
yo: obstruía
Obstruir is regular in the imperfect: obstruía, obstruías, obstruía, obstruíamos, obstruíais, obstruían.
Future
yo: obstruiré
Obstruir is regular in the future: obstruiré, obstruirás, obstruirá, obstruiremos, obstruiréis, obstruirán.
Conditional
yo: obstruiría
Obstruir is regular in the conditional: obstruiría, obstruirías, obstruiría, obstruiríamos, obstruiríais, obstruirían.
Present Subjunctive
yo: obstruya
Obstruir adds a 'y' before the endings in all forms: obstruya, obstruyas, obstruya, obstruyamos, obstruyáis, obstruyan.
Imperfect Subjunctive
yo: obstruyera
Based on the 3rd person preterite, it uses the 'y' stem: obstruyera, obstruyeras, obstruyera...
Affirmative Imperative
yo: obstruye
Give commands using the 'y' forms: obstruye (tú), obstruya (usted), obstruyan (ustedes).
Negative Imperative
yo: no obstruyas
All negative commands use the present subjunctive: no obstruyas, no obstruya, no obstruyamos...