sumar Future Conjugation
sumar — to add
The future of sumar is regular: sumaré, sumarás, sumará, sumaremos, sumaréis, sumarán.
sumar Future Forms
When to Use the Future
Use the future tense of sumar to talk about actions that will definitely happen ('Sumaré los números mañana' - I will add up the numbers tomorrow) or to express probability or conjecture about the present ('¿Sumará él las cifras?' - Will he be adding up the figures?).
Notes on sumar in the Future
Sumar is regular in the future tense. The stem is the infinitive 'sumar', and the endings are standard.
Example Sentences
Sumaré todos los gastos antes de fin de mes.
I will add up all the expenses before the end of the month.
yo
¿Sumarás tú los resultados del examen?
Will you add up the exam results?
tú
Ella sumará la cantidad total en la factura.
She will add the total amount on the invoice.
él/ella/usted
Nosotros sumaremos las participaciones de todos.
We will add up everyone's contributions.
nosotros
Ellos sumarán los votos después de las elecciones.
They will add up the votes after the elections.
ellos/ellas/ustedes
Common Mistakes
Mistake: Using the present tense instead of the future for future actions.
Correct: Use 'Sumaré los números' for a future action, not 'Sumo los números'.
Why: While the present can sometimes imply future, the future tense is used for certainty about future events.
Mistake: Incorrectly forming the stem for the future.
Correct: The stem is always the infinitive for regular verbs: 'sumar-' + endings. So, 'sumaré', not 'sumeré'.
Why: Some verbs have stem changes in the future/conditional, but 'sumar' does not.
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Related Tenses
Present
yo: sumo
The present of sumar is regular: sumo, sumas, suma, sumamos, sumáis, suman.
Preterite
yo: sumé
The preterite of sumar is regular: sumé, sumaste, sumó, sumamos, sumasteis, sumaron.
Imperfect
yo: sumaba
The imperfect of sumar is regular: sumaba, sumabas, sumaba, sumábamos, sumabais, sumaban.
Conditional
yo: sumaría
The conditional of sumar is regular: sumaría, sumarías, sumaría, sumaríamos, sumaríais, sumarían.
Present Subjunctive
yo: sume
The present subjunctive of sumar (sume) is used after expressions of doubt, desire, or emotion.
Imperfect Subjunctive
yo: sumara
The imperfect subjunctive of sumar (sumara/sumase) is used for past hypotheticals or polite requests.
Affirmative Imperative
yo: suma
The imperative of sumar is regular: suma, sume, sumemos, sumen, sumad.
Negative Imperative
yo: no sumes
The negative imperative of sumar uses the present subjunctive: no sumes, no sume, no sumemos, no sumen, no suméis.