alterar Future Conjugation
alterar — to change
The future tense of alter (alteraré, alterarás, alterará, alteraremos, alteraréis, alterarán) indicates actions that will happen.
alterar Future Forms
When to Use the Future
Use the future tense to talk about changes that are certain to happen. For example, 'El nuevo software alterará el proceso' means 'The new software will change the process'. It can also express probability or conjecture about the present.
Notes on alterar in the Future
Alter is regular in the future tense. The stem is the infinitive 'alterar', and the standard future endings are added.
Example Sentences
Yo alteraré las cifras según sea necesario.
I will change the figures as needed.
yo
¿Alterarás la presentación final?
Will you change the final presentation?
tú
El clima alterará la producción agrícola.
The climate will alter agricultural production.
él/ella/usted
Alteraremos el diseño del sitio web.
We will change the website design.
nosotros
Ellos alterarán las reglas del concurso.
They will change the contest rules.
ellos/ellas/ustedes
Common Mistakes
Mistake: Using the present tense or 'ir a' + infinitive instead of the future.
Correct: For a direct statement about a future event, use the future tense: 'Alteraremos el plan', not 'Alteramos el plan' or 'Vamos a alterar el plan' (though the latter is also correct, the future tense sounds more definitive).
Why: While 'ir a' + infinitive is common for future, the simple future tense expresses a more certain or formal prediction.
Mistake: Forgetting the accent on future forms like 'alterará'.
Correct: All future tense forms derived from -ar and -er verbs have an accent on the final vowel (except nosotros/vosotros).
Why: The accent marks the stressed syllable, distinguishing it from other verb forms.
Master Spanish verbs in context
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Related Tenses
Present
yo: altero
The present tense of alter (altero, alteras, altera, alteramos, alteráis, alteran) describes current actions, habits, or general truths.
Preterite
yo: alteré
The preterite of alter is regular: alteré, alteraste, alteró, alteramos, alterasteis, alteraron.
Imperfect
yo: alteraba
The imperfect of alter (alteraba, alterabas, alteraba, alterábamos, alterabais, alteraban) describes ongoing or habitual past actions.
Conditional
yo: alteraría
The conditional of alter (alteraría, alterarías, alteraría, alteraríamos, alteraríais, alterarían) expresses hypotheticals ('would') and polite requests.
Present Subjunctive
yo: altere
The present subjunctive of alter (altere, alteres, alteremos, alteréis, alteren) is used after expressions of will, doubt, emotion, and uncertainty.
Imperfect Subjunctive
yo: alterara
The imperfect subjunctive of alter (alterara/alterase) is used for past hypotheticals, wishes, or polite requests.
Affirmative Imperative
yo: altera
Alter commands are mostly regular: ¡altera, altere, alteremos, alterad, alteren!
Negative Imperative
yo: no alteres
Negative commands for alter are formed with 'no' + present subjunctive: no alteres, no altere, no alteremos, no alteréis, no alteren.