estremecer Imperfect Subjunctive Conjugation
estremecer — to shake
The imperfect subjunctive of estremecer is regular based on the preterite stem: estremeciera, estremecieras, estremeciera, estremeciéramos, estremecierais, estremecieran.
estremecer Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
Use this for hypothetical situations involving shaking or shivering in the past, or in 'if' clauses (e.g., 'If it were to shake me...').
Notes on estremecer in the Imperfect Subjunctive
This tense is regular. It follows the standard -er verb pattern by taking the third-person plural preterite (estremecieron) and replacing the ending.
Example Sentences
Si esa película me estremeciera, no la vería.
If that movie were to shake me, I wouldn't watch it.
él/ella/usted
Me pidió que no me estremeciera ante el peligro.
He asked me not to shudder in the face of danger.
yo
Si ellos se estremecieran, sabríamos que tienen miedo.
If they were to shudder, we would know they are afraid.
ellos/ellas/ustedes
Common Mistakes
Mistake: Adding a 'z' like 'estremezciera'.
Correct: estremeciera
Why: The 'zc' change only happens before 'o' and 'a'. Since the imperfect subjunctive endings start with 'ie', the 'z' is not needed.
Master Spanish verbs in context
Memorizing tables only gets you so far. Read 200+ illustrated and narrated Spanish stories to see verbs like 'estremecer' used naturally — in the tenses you're learning.
Related Tenses
Present
yo: estremezco
The present tense of estremecer is irregular only in the 'yo' form: estremezco.
Preterite
yo: estremecí
The preterite of estremecer is regular: estremecí, estremeciste, estremeció, estremecimos, estremecisteis, estremecieron.
Imperfect
yo: estremecía
The imperfect of estremecer is regular: estremecía, estremecías, estremecía, estremecíamos, estremecíais, estremecían.
Future
yo: estremeceré
The future tense of estremecer is regular: estremeceré, estremecerás, estremecerá, estremeceremos, estremeceréis, estremecerán.
Conditional
yo: estremecería
The conditional of estremecer is regular: estremecería, estremecerías, estremecería, estremeceríamos, estremeceríais, estremecerían.
Present Subjunctive
yo: estremezca
The present subjunctive of estremecer uses the spelling change 'zc' in all forms: estremezca, estremezcas, estremezca, estremezcamos, estremezcáis, estremezcan.
Affirmative Imperative
yo: estremece
The imperative uses 'estremece' for tú and 'estremezca' for formal commands.
Negative Imperative
yo: no estremezcas
The negative imperative always uses the present subjunctive forms: no estremezcas, no estremezca, no estremezcamos, no estremezcáis, no estremezcan.