Missing the Stem Change

This form ('convirtió') describes a single, finished action that happened at a specific point in the past, like a chapter closing in a story.

Preterite Tense

The verb 'convertir' is tricky! In the simple past (preterite), the 'e' in the stem changes to 'i' only in the 'él/ella/usted' and 'ellos/ellas/ustedes' forms. Notice: 'convirtió' and 'convirtieron'.

Irregularity (e > i)

When saying what something was converted *into*, always use the preposition 'en': 'convirtió [A] en [B]' (converted A into B).

Using 'en'

Extremely common when telling stories or describing past changes.

Forgetting the 'se'

When 'convertir' means 'to become' or 'to change oneself,' it must be used with the reflexive pronoun 'se' (or 'me,' 'te,' 'nos,' etc.). This tells us the subject is changing itself.

Reflexive Form ('se')

Use 'se convirtió en' when describing a change in permanent identity or status, like becoming a professional, a believer, or a new type of person.

Becoming vs. Changing

Common when discussing changes in identity, beliefs, or status.

'Convirtió' is the third-person singular past tense of 'convertir,' meaning 'he/she/it converted' or 'became.' Learn its irregular stem change, usage with 'en,' and the difference between the transitive and reflexive forms.

convertir

Complete Conjugation Tables

🔄 Conjugations

indicative

present

future

imperfect

conditional

preterite

imperative

negative

affirmative

subjunctive

present

imperfect

Practice Conjugations