reconstruir Imperfect Subjunctive Conjugation
reconstruir — to rebuild
The imperfect subjunctive is based on the preterite 'ellos' form: reconstruyera, reconstruyeras, reconstruyera...
reconstruir Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
Use this for hypothetical 'if' situations (e.g., 'If I rebuilt...') or when the main verb is in the past and requires the subjunctive.
Notes on reconstruir in the Imperfect Subjunctive
Because the preterite 'ellos' form is 'reconstruyeron', the imperfect subjunctive stem is 'reconstruyer-'.
Example Sentences
Si reconstruyeras la casa, sería más valiosa.
If you rebuilt the house, it would be more valuable.
tú
Me gustaría que ellos reconstruyeran el parque.
I would like them to rebuild the park.
ellos/ellas/ustedes
Si nosotros reconstruyéramos el motor, funcionaría.
If we rebuilt the engine, it would work.
nosotros
Common Mistakes
Mistake: reconstruiera
Correct: reconstruyera
Why: Just like the preterite, the 'i' changes to 'y' because it falls between two vowels.
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Related Tenses
Present
yo: reconstruyo
Reconstruir adds a 'y' before endings in all forms except nosotros and vosotros: reconstruyo, reconstruyes, reconstruye, reconstruyen.
Preterite
yo: reconstruí
The preterite features a 'y' in the third-person forms and accents on almost all endings: reconstruí, reconstruyó, reconstruyeron.
Imperfect
yo: reconstruía
Reconstruir is regular in the imperfect: reconstruía, reconstruías, reconstruía, reconstruíamos, reconstruíais, reconstruían.
Future
yo: reconstruiré
The future tense is regular: add the endings to the full infinitive (reconstruiré, reconstruirás, etc.).
Conditional
yo: reconstruiría
The conditional is regular: add -ía, -ías, -ía, -íamos, -íais, -ían to the infinitive.
Present Subjunctive
yo: reconstruya
The present subjunctive uses the 'y' stem from the 'yo' form: reconstruya, reconstruyas, reconstruya...
Affirmative Imperative
yo: reconstruye
Use 'reconstruye' (tú) or 'reconstruya' (usted) to give direct orders to fix or restore something.
Negative Imperative
yo: no reconstruyas
Negative commands always use the present subjunctive forms: no reconstruyas, no reconstruya.