convertir Imperfect Subjunctive Conjugation
convertir — to convert
The imperfect subjunctive is built on the third-person preterite stem 'convirt-': convirtiera, convirtieras, etc.
convertir Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
Use this for hypothetical 'if' situations or when the main verb is in the past and expresses a wish/doubt.
Notes on convertir in the Imperfect Subjunctive
Because the third-person preterite is 'convirtieron', the 'i' carries through all forms of this tense.
Example Sentences
Si convirtieras tu actitud, serías más feliz.
If you changed (converted) your attitude, you would be happier.
tú
Me gustaría que ellos convirtieran el edificio en un museo.
I would like them to convert the building into a museum.
ellos/ellas/ustedes
Common Mistakes
Mistake: Using 'convertiera' with an 'e'.
Correct: convirtiera
Why: This tense always follows the stem of the third-person preterite, which is 'convirt-'.
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Related Tenses
Present
yo: convierto
The present tense of convertir features an e > ie stem change in all forms except nosotros and vosotros.
Preterite
yo: convertí
In the preterite, convertir has a stem change (e > i) only in the third-person forms: convirtió and convirtieron.
Imperfect
yo: convertía
The imperfect of convertir is regular: convertía, convertías, convertía, convertíamos, convertíais, convertían.
Future
yo: convertiré
The future tense of convertir is entirely regular: convertiré, convertirás, convertirá, etc.
Conditional
yo: convertiría
The conditional of convertir is regular and uses the full infinitive as the base: convertiría, convertirías, etc.
Present Subjunctive
yo: convierta
The present subjunctive uses the stem 'conviert-' for most forms, but 'convirt-' for nosotros and vosotros.
Affirmative Imperative
yo: convierte
The imperative uses 'convierte' for informal commands and 'convierta/convirtamos' for formal or group commands.
Negative Imperative
yo: no conviertas
The negative imperative uses the present subjunctive forms: no conviertas, no convierta, no convirtamos.