
contribuir Negative Imperative Conjugation
contribuir — to contribute
All negative commands for contribuir use the 'y' stem: no contribuyas, no contribuya, no contribuyamos.
contribuir Negative Imperative Forms
When to Use the Negative Imperative
Use this to tell someone NOT to contribute, perhaps if you want them to save their money or if their help isn't needed.
Notes on contribuir in the Negative Imperative
Negative commands are identical to the present subjunctive forms.
Example Sentences
No contribuyas si no estás de acuerdo.
Don't contribute if you don't agree.
tú
No contribuyamos a los rumores.
Let's not contribute to the rumors.
nosotros
No contribuyan sin leer el contrato.
Don't contribute without reading the contract.
Common Mistakes
Mistake: Saying 'no contribuye' instead of 'no contribuyas'.
Correct: no contribuyas
Why: Negative commands must use the subjunctive form, not the indicative form.
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Related Tenses
Present
yo: contribuyo
The present tense of contribuir adds a 'y' before endings: contribuyo, contribuyes, contribuye, contribuyen.
Preterite
yo: contribuí
In the preterite, contribuir changes 'i' to 'y' in the third-person forms: contribuyó and contribuyeron.
Imperfect
yo: contribuía
The imperfect of contribuir is regular: contribuía, contribuías, contribuía, contribuíamos, contribuíais, contribuían.
Future
yo: contribuiré
The future tense of contribuir is regular: añadir the endings to the infinitive (contribuiré, contribuirás, etc.).
Conditional
yo: contribuiría
The conditional of contribuir is regular: añadir the endings -ía to the infinitive (contribuiría).
Present Subjunctive
yo: contribuya
The present subjunctive uses the 'y' stem from the 'yo' form: contribuya, contribuyas, contribuya...
Imperfect Subjunctive
yo: contribuyera
The imperfect subjunctive uses the 'y' from the preterite: contribuyera, contribuyeras, contribuyera...
Affirmative Imperative
yo: contribuye
Use 'contribuye' (tú) or 'contribuya' (usted) to tell someone to help out.