convertirse Present Conjugation
convertirse — to become
Convertirse features an e>ie stem change in all forms except nosotros and vosotros.
convertirse Present Forms
When to Use the Present
Use the present to describe ongoing transformations, habits, or general facts about how things change or what people are becoming.
Notes on convertirse in the Present
This is a radical-changing verb where the 'e' in the stem becomes 'ie' when stressed (the 'boot' forms).
Example Sentences
El agua se convierte en hielo a cero grados.
Water turns into ice at zero degrees.
él/ella/usted
Me convierto en una persona diferente cuando tengo hambre.
I become a different person when I am hungry.
yo
Nos convertimos en expertos con la práctica.
We become experts with practice.
nosotros
Common Mistakes
Mistake: yo me converto
Correct: yo me convierto
Why: The verb requires an e>ie stem change in the present tense for the 'yo' form.
Master Spanish verbs in context
Memorizing tables only gets you so far. Read 200+ illustrated and narrated Spanish stories to see verbs like 'convertirse' used naturally — in the tenses you're learning.
Related Tenses
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.
Imperfect Subjunctive
yo: me convirtiera
Uses the 'i' stem from the third-person preterite: se convirtiera, se convirtieras.
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.