adherir Preterite Conjugation
adherir — to stick
In the preterite, adherir has a third-person stem change from e to i (adhirió, adhirieron).
adherir Preterite Forms
When to Use the Preterite
Use the preterite to describe a specific moment when someone joined a cause or when an object successfully stuck to something.
Notes on adherir in the Preterite
The 'e' changes to 'i' only in the third-person singular (él/ella/usted) and third-person plural (ellos/ellas/ustedes). Other forms are regular.
Example Sentences
Ayer me adherí a la propuesta.
Yesterday I joined the proposal.
yo
El sello se adhirió perfectamente al sobre.
The stamp stuck perfectly to the envelope.
él/ella/usted
Ellos se adhirieron al tratado de paz.
They joined the peace treaty.
ellos/ellas/ustedes
Common Mistakes
Mistake: Using 'adherió' instead of 'adhirió'.
Correct: adhirió
Why: -ir verbs with a stem change in the present often have an e-to-i change in the preterite third person.
Mistake: Using 'adhirí' for the first person.
Correct: adherí
Why: The e-to-i change in the preterite only happens in the third person; the 'yo' form keeps the 'e'.
Master Spanish verbs in context
Memorizing tables only gets you so far. Read 200+ illustrated and narrated Spanish stories to see verbs like 'adherir' used naturally — in the tenses you're learning.
Related Tenses
Present
yo: adhiero
The present of adherir follows an e-to-ie stem change (adhiero, adhieres, adhiere, adhieren), except in nosotros and vosotros.
Imperfect
yo: adhería
The imperfect of adherir is completely regular: adhería, adherías, adhería, adheríamos, adheríais, adherían.
Future
yo: adheriré
The future of adherir is regular: add the endings -é, -ás, -á, -emos, -éis, -án to the full infinitive.
Conditional
yo: adheriría
The conditional of adherir is regular: adheriría, adherirías, adheriría, adheriríamos, adheriríais, adherirían.
Present Subjunctive
yo: adhiera
The present subjunctive uses the 'i' or 'ie' stem changes: adhiera, adhieras, adhiera, adhiramos, adhiráis, adhieran.
Imperfect Subjunctive
yo: adhiriera
The imperfect subjunctive of adherir uses the 'i' stem change: adhiriera, adhirieras, adhiriera...
Affirmative Imperative
yo: adhiere
Commands for adherir use 'adhiere' (tú) and 'adhiera' (usted).
Negative Imperative
yo: no adhieras
Negative commands use the present subjunctive forms: no adhieras, no adhiera, no adhiramos, no adhieran.