endurecer Affirmative Imperative Conjugation
endurecer — to harden
The imperative of endurecer uses 'endurece' (tú) and 'endurezca' (usted).
endurecer Affirmative Imperative Forms
When to Use the Affirmative Imperative
Use this to give direct orders to harden something, like a substance or a policy.
Notes on endurecer in the Affirmative Imperative
The 'usted' and 'ustedes' forms use the 'zc' from the subjunctive.
Example Sentences
Endurece la mezcla antes de aplicarla.
Harden the mixture before applying it.
tú
Endurezcan su actitud frente al problema.
Toughen (plural) your attitude toward the problem.
Common Mistakes
Mistake: Endureca (tú).
Correct: Endurece (tú).
Why: The affirmative 'tú' command uses the regular present indicative third-person singular form.
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Related Tenses
Present
yo: endurezco
The present tense of endurecer is irregular in the 'yo' form: endurezco.
Preterite
yo: endurecí
The preterite of endurecer is regular: endurecí, endureciste, endureció, endurecimos, endurecisteis, endurecieron.
Imperfect
yo: endurecía
The imperfect of endurecer is regular: endurecía, endurecías, endurecía, endurecíamos, endurecíais, endurecían.
Future
yo: endureceré
The future of endurecer is regular: endureceré, endurecerás, endurecerá, endureceremos, endureceréis, endurecerán.
Conditional
yo: endurecería
The conditional of endurecer is regular: endurecería, endurecerías, endurecería, endureceríamos, endureceríais, endurecerían.
Present Subjunctive
yo: endurezca
The present subjunctive of endurecer uses the 'zc' stem: endurezca, endurezcas, endurezca, etc.
Imperfect Subjunctive
yo: endureciera
The imperfect subjunctive of endurecer is formed from the third-person plural preterite: endureciera.
Negative Imperative
yo: no endurezcas
The negative imperative always uses the present subjunctive forms: no endurezcas, no endurezca.