Inklingo
A child happily knocking down a wooden block tower to start building it again.

rehacer Preterite Conjugation

rehacer — to redo

B1irregular -er★★★★
Quick answer:

Rehacer is highly irregular in the preterite, changing to a 'hic' stem: rehice, rehiciste, rehizo, rehicimos, rehicisteis, rehicieron.

rehacer Preterite Forms

yorehice
túrehiciste
él/ella/ustedrehizo
nosotrosrehicimos
vosotrosrehicisteis
ellos/ellas/ustedesrehicieron

When to Use the Preterite

Use this for a completed action where something was redone or rebuilt at a specific point in time.

Notes on rehacer in the Preterite

The stem changes to 'rehic-'. Crucially, the 'él/ella' form changes 'c' to 'z' (rehizo) to maintain the 's' sound.

Example Sentences

  • Ayer rehice toda la presentación.

    Yesterday I redid the whole presentation.

    yo

  • Ella rehizo su vida en otra ciudad.

    She rebuilt (redid) her life in another city.

    él/ella/usted

  • Los arquitectos rehicieron los planos.

    The architects redid the plans.

    ellos/ellas/ustedes

Common Mistakes

  • Mistake: Writing 'rehico' for the third person.

    Correct: rehizo

    Why: In Spanish, 'co' sounds like 'ko'. To keep the 's' sound of the stem, the 'c' must change to 'z' before 'o'.

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Related Tenses

Present

yo: rehago

Rehacer is irregular only in the 'yo' form (rehago); all other forms follow the regular -er pattern.

Imperfect

yo: rehacía

Rehacer is completely regular in the imperfect: rehacía, rehacías, rehacía, rehacíamos, rehacíais, rehacían.

Future

yo: reharé

The future of rehacer uses the irregular stem 'rehar-': reharé, reharás, rehará, reharemos, reharéis, reharán.

Conditional

yo: reharía

The conditional of rehacer uses the irregular stem 'rehar-': reharía, reharías, reharía, reharíamos, reharíais, reharían.

Present Subjunctive

yo: rehaga

Rehacer uses a 'g' stem in the present subjunctive: rehaga, rehagas, rehaga, rehagamos, rehagáis, rehagan.

Imperfect Subjunctive

yo: rehiciera

The imperfect subjunctive of rehacer uses the 'hic-' stem: rehiciera, rehicieras, rehiciera, rehiciéramos, rehicierais, rehicieran.

Affirmative Imperative

yo: rehaz

The affirmative commands for rehacer are: rehaz (tú), rehaga (usted), rehagamos (nosotros), rehaced (vosotros), rehagan (ustedes).

Negative Imperative

yo: no rehagas

Negative commands use the present subjunctive forms: no rehagas, no rehaga, no rehagamos, no rehagáis, no rehagan.