descomponer Present Subjunctive Conjugation
descomponer — to break down
The present subjunctive uses the 'descompong-' stem: descomponga, descompongas.
descomponer Present Subjunctive Forms
When to Use the Present Subjunctive
Use it after expressions of doubt, desire, or emotion, such as 'Espero que no se descomponga' (I hope it doesn't break).
Notes on descomponer in the Present Subjunctive
The subjunctive is built from the 'yo' form of the present indicative (descompongo), so it keeps the 'g' throughout.
Example Sentences
Espero que la comida no se descomponga fuera de la nevera.
I hope the food doesn't spoil outside the fridge.
él/ella/usted
Dudo que ellos descompongan el equipo hoy.
I doubt they will dismantle the equipment today.
ellos/ellas/ustedes
Common Mistakes
Mistake: Saying 'descompone' instead of 'descomponga' after 'que'.
Correct: Use 'descomponga' for the subjunctive.
Why: Verbs like 'esperar' or 'querer' trigger the subjunctive mood.
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Related Tenses
Present
yo: descompongo
The present of descomponer is irregular in the 'yo' form (descompongo), following the pattern of poner.
Preterite
yo: descompuse
The preterite of descomponer is highly irregular, using the 'pus-' stem: descompuse, descompusiste, descompuso.
Imperfect
yo: descomponía
The imperfect of descomponer is regular: descomponía, descomponías, descomponía.
Future
yo: descompondré
The future of descomponer uses the irregular stem 'descompondr-': descompondré, descompondrás.
Conditional
yo: descompondría
The conditional uses the irregular stem 'descompondr-': descompondría, descompondrías.
Imperfect Subjunctive
yo: descompusiera
The imperfect subjunctive uses the 'descompusie-' stem: descompusiera, descompusieras.
Affirmative Imperative
yo: descompón
The affirmative imperative has a short 'tú' form: descompón.
Negative Imperative
yo: no descompongas
The negative imperative uses the 'no' + present subjunctive: no descompongas.