invertir Preterite Conjugation
invertir — to invest
Invertir has a 'slipper' stem change (e-to-i) in the third person: invirtió and invirtieron.
invertir Preterite Forms
When to Use the Preterite
Use the preterite to mention a specific investment made at a specific point in time, like buying a house or a stock last year.
Notes on invertir in the Preterite
While the first and second person forms use the regular 'e' (invertí), the third person (él/ellos) changes the 'e' to 'i' (invirtió, invirtieron).
Example Sentences
Invertí todos mis ahorros en esa empresa.
I invested all my savings in that company.
yo
Ella invirtió en una propiedad en la playa.
She invested in a beach property.
él/ella/usted
Ellos invirtieron poco dinero al principio.
They invested little money at the beginning.
ellos/ellas/ustedes
Common Mistakes
Mistake: Saying 'invertió' instead of 'invirtió'.
Correct: Invirtió.
Why: Third-person -ir verbs with an 'e' in the stem often change to 'i' in the preterite.
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Related Tenses
Present
yo: invierto
Invertir is an e-to-ie stem-changer in the present (invierto, inviertes, invierte, invierten), but nosotros and vosotros remain regular.
Imperfect
yo: invertía
The imperfect of invertir is completely regular: invertía, invertías, invertía, invertíamos, invertíais, invertían.
Future
yo: invertiré
The future tense is regular: simply add endings to the infinitive (invertiré, invertirás, invertirá).
Conditional
yo: invertiría
The conditional is regular: add -ía endings to the infinitive (invertiría, invertirías, invertiría).
Present Subjunctive
yo: invierta
Invertir stem-changes to 'ie' in most forms, but changes to 'i' in nosotros/vosotros (invirtamos, invirtáis).
Imperfect Subjunctive
yo: invirtiera
Based on the preterite 'invirtieron', all forms use the 'invirt-' stem (invirtiera, invirtieras).
Affirmative Imperative
yo: invierte
Commands use 'invierte' (tú) and 'invierta' (usted), following the present and subjunctive patterns.
Negative Imperative
yo: no inviertas
Negative commands always use the present subjunctive forms: no inviertas, no invierta, no invirtamos.