Regular Formation

The Spanish conditional translates roughly as "would + verb" in English. It is one of the easiest tenses to form because, like the future, it is built directly on the full infinitive.

Formation

To conjugate a regular verb in the conditional, take the complete infinitive and attach the conditional endings. No letters are dropped, and the same endings work for all three conjugation classes (-ar, -er, -ir).

SubjectEnding
yo-ía
-ías
él / ella / usted-ía
nosotros-íamos
ellos / ellas / ustedes-ían

Notice that every ending carries a written accent on the í. This accent is never optional — it distinguishes the conditional from other forms and keeps the stress on the correct syllable.

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The conditional endings are identical to the imperfect endings of -er and -ir verbs. If you already know the imperfect of comer or vivir, you know the conditional endings too.

Hablar (-ar verb)

SubjectForm
yohablaría
hablarías
él / ella / ustedhablaría
nosotroshablaríamos
ellos / ellas / ustedeshablarían

Yo hablaría con el profesor, pero no está.

I would talk to the teacher, but he isn't here.

Comer (-er verb)

SubjectForm
yocomería
comerías
él / ella / ustedcomería
nosotroscomeríamos
ellos / ellas / ustedescomerían

¿Comerías sushi todos los días?

Would you eat sushi every day?

Vivir (-ir verb)

SubjectForm
yoviviría
vivirías
él / ella / ustedviviría
nosotrosviviríamos
ellos / ellas / ustedesvivirían

Viviríamos en la playa si pudiéramos.

We would live at the beach if we could.

Same endings, three classes

Because the endings are identical across all verb classes, conjugating the conditional is essentially a matter of saying the infinitive and adding -ía, -ías, -ía, -íamos, -ían.

Ellos estudiarían más si tuvieran tiempo.

They would study more if they had time.

¿Ustedes me ayudarían con la mudanza?

Would you (all) help me with the move?

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Verbs with spelling changes or stem changes in other tenses (like pensar or dormir) are completely regular in the conditional. The stress stays on the -ía ending, so the stem never changes: pensaría, dormiría.

Quick contrast with the future

Compare the future and conditional side by side — only the endings differ:

FutureConditional
hablaréhablaría
comeráscomerías
viviráviviría
hablaremoshablaríamos
viviránvivirían

Mañana viajaré a Lima, pero hoy viajaría a Cusco si pudiera.

Tomorrow I will travel to Lima, but today I would travel to Cusco if I could.

Once you are comfortable with the regular pattern, move on to the small group of verbs with irregular stems.

Related Topics

  • Irregular StemsB1The twelve verbs with irregular future stems use those same stems to form the conditional.
  • Usage: Hypothetical SituationsB1Use the conditional to talk about what would happen in imagined or unreal situations.
  • Usage: Polite RequestsB1The conditional softens requests and suggestions, making them sound more courteous than the present tense.