deshacer Preterite Conjugation
deshacer — to undo
Deshacer is highly irregular in the preterite, using the 'hic-' stem (deshice, deshizo).
deshacer Preterite Forms
When to Use the Preterite
Use this for completed actions in the past, like when a deal fell through or you finished unpacking a bag yesterday.
Notes on deshacer in the Preterite
It uses the irregular stem 'deshic-'. Note that the third-person singular changes the 'c' to 'z' (deshizo) to keep the 's' sound.
Example Sentences
Deshice el contrato ayer.
I canceled (undid) the contract yesterday.
yo
Ella deshizo el lazo del regalo.
She untied the ribbon on the gift.
él/ella/usted
Deshicieron todos los cambios que hice.
They undid all the changes I made.
ellos/ellas/ustedes
Common Mistakes
Mistake: Writing 'deshició' or 'deshaceó'.
Correct: deshizo
Why: Deshacer follows the irregular 'hacer' pattern, not the regular -er pattern.
Mistake: Spelling the él form as 'deshico'.
Correct: deshizo
Why: In Spanish, 'co' sounds like 'ko'. To keep the 's' sound of the verb, we must use a 'z'.
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Related Tenses
Present
yo: deshago
Deshacer is irregular in the first person (yo deshago), but follows regular -er patterns for the rest.
Imperfect
yo: deshacía
Deshacer is completely regular in the imperfect: deshacía, deshacías, deshacía...
Future
yo: desharé
Deshacer uses the irregular stem 'deshar-' for all future forms.
Conditional
yo: desharía
The conditional uses the irregular stem 'deshar-' plus regular endings (desharía).
Present Subjunctive
yo: deshaga
The present subjunctive is based on the 'deshago' stem: deshaga, deshagas...
Imperfect Subjunctive
yo: deshiciera
This tense uses the 'deshic-' stem from the preterite: deshiciera, deshicieras...
Affirmative Imperative
yo: deshaz
The command 'deshaz' (tú) is irregular; other forms follow the subjunctive.
Negative Imperative
yo: no deshagas
Negative commands always use the present subjunctive forms: no deshagas, no deshaga.