convertirse Imperfect Subjunctive Conjugation
convertirse — to become
Uses the 'i' stem from the third-person preterite: se convirtiera, se convirtieras.
convertirse Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
Use for hypothetical 'if' situations (e.g., 'If I became...') or after past-tense expressions of desire or doubt.
Notes on convertirse in the Imperfect Subjunctive
All forms use the 'convirt-' stem derived from the preterite 'ellos' form (convirtieron).
Example Sentences
Si me convirtiera en millonario, viajaría mucho.
If I became a millionaire, I would travel a lot.
yo
Me gustaría que se convirtieran en amigos.
I would like them to become friends.
ellos/ellas/ustedes
Si te convirtieras en gato, ¿qué harías?
If you became a cat, what would you do?
tú
Common Mistakes
Mistake: se convertiera
Correct: se convirtiera
Why: The imperfect subjunctive must follow the stem change found in the 3rd person preterite (e>i).
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Related Tenses
Present
yo: me convierto
Convertirse features an e>ie stem change in all forms except nosotros and vosotros.
Preterite
yo: me convertí
Convertirse has an e>i stem change in the third person: se convirtió and se convirtieron.
Imperfect
yo: me convertía
The imperfect of convertirse is regular: se convertía, se convertías, etc.
Future
yo: me convertiré
The future of convertirse is regular: se convertirá, se convertirán, etc.
Conditional
yo: me convertiría
The conditional is regular: se convertiría, se convertirías, etc.
Present Subjunctive
yo: me convierta
Features an e>ie change, plus an e>i change in the nosotros/vosotros forms.
Affirmative Imperative
yo: conviértete
Commands for transformation: conviértete, conviértase, convirtámonos.
Negative Imperative
yo: no te conviertas
Negative commands use the present subjunctive: no te conviertas.