acostar Negative Imperative Conjugation
acostar — to put to bed
Negative commands use the present subjunctive: no acuestes, no acueste, no acostemos, no acostéis, no acuesten.
acostar Negative Imperative Forms
When to Use the Negative Imperative
Use this to tell someone NOT to put someone to bed yet.
Notes on acostar in the Negative Imperative
Matches the present subjunctive exactly. Remember: no stem change for nosotros (acostemos) or vosotros (acostéis).
Example Sentences
No acuestes al niño todavía, no tiene sueño.
Don't put the child to bed yet; he's not sleepy.
tú
No acueste al perro en mi cama, por favor.
Don't put the dog to bed on my bed, please.
No acostéis a los niños en el sofá.
Don't put the kids to bed on the sofa.
vosotros
Common Mistakes
Mistake: Using 'no acuesta' for the tú command.
Correct: no acuestes
Why: Negative commands must always use the subjunctive 's' ending, not the indicative 'a' ending.
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Related Tenses
Present
yo: acuesto
Acostar is an O-to-UE stem-changer in the present tense: acuesto, acuestas, acuesta, acostamos, acostáis, acuestan.
Preterite
yo: acosté
Acostar is regular in the preterite: acosté, acostaste, acostó, acostamos, acostasteis, acostaron.
Imperfect
yo: acostaba
Acostar is regular in the imperfect: acostaba, acostabas, acostaba, acostábamos, acostabais, acostaban.
Future
yo: acostaré
Acostar is regular in the future: acostaré, acostarás, acostará, acostaremos, acostaréis, acostarán.
Conditional
yo: acostaría
Acostar is regular in the conditional: acostaría, acostarías, acostaría, acostaríamos, acostaríais, acostarían.
Present Subjunctive
yo: acueste
Acostar has an O-to-UE stem change in the subjunctive: acueste, acuestes, acueste, acostemos, acostéis, acuesten.
Imperfect Subjunctive
yo: acostara
The imperfect subjunctive of acostar is regular: acostara, acostaras, acostara, acostáramos, acostarais, acostaran.
Affirmative Imperative
yo: acuesta
Use acuesta (tú), acueste (usted), and acostad (vosotros) to give orders to put someone to bed.