hervir Negative Imperative Conjugation
hervir — to boil
All negative commands for hervir are identical to the present subjunctive forms preceded by 'no'.
hervir Negative Imperative Forms
When to Use the Negative Imperative
Use this to tell someone not to boil something (e.g., 'Don't boil the salad!').
Notes on hervir in the Negative Imperative
Follows the subjunctive stem changes: 'ie' for most, 'i' for nosotros/vosotros.
Example Sentences
No hiervas el agua todavía.
Don't boil the water yet.
tú
No hirváis las verduras por mucho tiempo.
Don't boil the vegetables for a long time.
vosotros
Common Mistakes
Mistake: no hierves
Correct: no hiervas
Why: Negative commands must use subjunctive endings, not indicative ones.
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Related Tenses
Present
yo: hiervo
Hervir is an e > ie stem-changer in the present (hiervo, hierves, hierve, hierven), except for nosotros and vosotros.
Preterite
yo: herví
Hervir has a 'slipper' stem change (e > i) only in the third-person forms: hirvió and hirvieron.
Imperfect
yo: hervía
Hervir is completely regular in the imperfect: hervía, hervías, hervía, hervíamos, hervíais, hervían.
Future
yo: herviré
Hervir is regular in the future; just add the endings to the infinitive: herviré, hervirás, etc.
Conditional
yo: herviría
The conditional uses the full infinitive 'hervir' plus the endings -ía, -ías, -ía, etc.
Present Subjunctive
yo: hierva
Hervir changes e > ie in most forms, but importantly shifts e > i in the nosotros and vosotros forms.
Imperfect Subjunctive
yo: hirviera
The imperfect subjunctive uses the 'hirvier-' stem for all forms (hirviera, hirvieras, etc.).
Affirmative Imperative
yo: hierve
Use 'hierve' for tú and 'hierva' for usted to give direct cooking instructions.