tumbar Negative Imperative Conjugation
tumbar — to knock down
Use 'no tumbes' (tú) and 'no tumben' (ustedes) for negative commands with 'tumbar'.
tumbar Negative Imperative Forms
When to Use the Negative Imperative
You use the negative imperative to tell someone *not* to do something. For 'tumbar', you'd be instructing someone not to knock something down. These forms are identical to the present subjunctive.
Notes on tumbar in the Negative Imperative
Tumbar is regular in the negative imperative, using the present subjunctive forms.
Example Sentences
No tumbes la pila de platos.
Don't knock over the stack of plates.
tú
No tumbéis las figuritas del estante.
Don't knock over the figurines on the shelf.
vosotros
No tumben la pared sin permiso.
Don't knock down the wall without permission.
ustedes
Common Mistakes
Mistake: Using the infinitive like 'no tumbar'.
Correct: Use 'no tumbes' for 'tú' or 'no tumben' for 'ustedes'.
Why: Negative commands require conjugated verb forms, not the infinitive.
Mistake: Confusing negative commands with the preterite.
Correct: For a negative command, use 'no tumbes'; for a completed past action, use 'no tumbaste'.
Why: Commands and past actions are distinct grammatical functions.
Master Spanish verbs in context
Memorizing tables only gets you so far. Read 200+ illustrated and narrated Spanish stories to see verbs like 'tumbar' used naturally — in the tenses you're learning.
Related Tenses
Present
yo: tumbo
The present tense of 'tumbar' is regular: tumbo, tumbas, tumba, tumbamos, tumbáis, tumban.
Preterite
yo: tumbé
The preterite of 'tumbar' is regular: tumbé, tumbaste, tumbó, tumbamos, tumbasteis, tumbaron.
Imperfect
yo: tumbaba
The imperfect of 'tumbar' is regular: tumbaba, tumbabas, tumbaba, tumbábamos, tumbabais, tumbaban.
Future
yo: tumbaré
The future of 'tumbar' is regular: tumbaré, tumbarás, tumbará, tumbaremos, tumbaréis, tumbarán.
Conditional
yo: tumbaría
The conditional of 'tumbar' is regular: tumbaría, tumbarías, tumbaría, tumbaríamos, tumbaríais, tumbarían.
Present Subjunctive
yo: tumbe
Use 'tumba' (él/ella/usted) or 'tumbemos' (nosotros) for wishes, doubts, or emotions related to 'tumbar'.
Imperfect Subjunctive
yo: tumbara
Use 'tumbara' or 'tumbase' for hypothetical past situations or wishes involving 'tumbar'.
Affirmative Imperative
yo: tumba
Use 'tumba' (tú) and 'tumben' (ustedes) for direct commands with 'tumbar'.