convencer Preterite Conjugation
convencer — to convince
The preterite of convencer is regular: convencí, convenciste, convenció, convencimos, convencisteis, convencieron.
convencer Preterite Forms
When to Use the Preterite
Use the preterite when you successfully persuaded someone at a specific point in time. It marks the moment the 'convincing' was completed.
Notes on convencer in the Preterite
Convencer is regular in the preterite. The 'c' stays a 'c' because it is followed by 'i' or 'e', which maintains the 's' sound.
Example Sentences
Al final, convencí a mi madre para ir al cine.
In the end, I convinced my mother to go to the cinema.
yo
¿Convenciste a tu jefe del nuevo proyecto?
Did you convince your boss about the new project?
tú
Nos convencieron con sus argumentos.
They convinced us with their arguments.
ellos/ellas/ustedes
Common Mistakes
Mistake: Writing 'convenzí' with a 'z'.
Correct: convencí
Why: In Spanish, the 'c' already makes the 's/th' sound before 'e' or 'i', so a 'z' is not needed here.
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Related Tenses
Present
yo: convenzo
The present tense of convencer is regular except for the 'yo' form: convenzo.
Imperfect
yo: convencía
The imperfect of convencer is regular: convencía, convencías, convencía, convencíamos, convencíais, convencían.
Future
yo: convenceré
The future of convencer is regular: convenceré, convencerás, convencerá, convenceremos, convenceréis, convencerán.
Conditional
yo: convencería
The conditional of convencer is regular: convencería, convencerías, convencería, convenceríamos, convenceríais, convencerían.
Present Subjunctive
yo: convenza
The present subjunctive of convencer uses the 'z' in all forms: convenza, convenzas, convenza, convenzamos, convenzáis, convenzan.
Imperfect Subjunctive
yo: convenciera
The imperfect subjunctive of convencer is regular: convenciera, convencieras, convenciera, convenciéramos, convencierais, convencieran.
Affirmative Imperative
yo: convence
The imperative of convencer uses 'convence' (tú) and 'convenza' (usted).
Negative Imperative
yo: no convenzas
The negative imperative of convencer always uses the 'z': no convenzas, no convenza, no convenzamos, no convenzáis, no convenzan.