The Future and Conditional

In Spanish, the future and conditional are seen together in their formation because both are formed from the same model. To form the future and conditional, as in many Romance languages, we start from the verb infinitive to which we add the following endings:
- for the future: -é, -ás, -á, -emos, -éis, -án
- for the conditional: -ía, -ías, -ía, -íamos, -íais, -ían

To remember them, a simple way for the future is to start from the endings of haber (without the h). As for the conditional, these are the same endings as for the imperfect of verbs in -er and -ir.

Let's immediately notice the similarity with French where we also start from the infinitive:
- for the future: j'aimerai, tu aimeras, il aimera, nous aimerons, vous aimerez, ils aimeront
- for the conditional: j'aimerais, tu aimerais, il aimerait, nous aimerions, vous aimeriez, ils aimeraient

Irregular Verbs

A simple rule to remember: as soon as a verb is irregular in the preterite (also called simple past), it is irregular in the future and conditional and is based on the same stem (except salir). The stem generally has the forms: br, de or rr. We also have some verbs for which an epenthetic -d appears for sound: yo saldré.

Here is a table below with the main irregularities: