1. Future and conditional
In English the future is signaled by the word WILL
And in conditional the word WOULD

2. Future
AR/ER/IR verbs all use the same endings BECAUSE: they attach to the entire infinitive
É EMOS
ÁS ÉIS
Á ÁN
Notice they all have accents except NOSOTROS

3. SO: Estudiaré esta noche. I will (I’ll) study tonight.
Comerás en un restaurante. You will (you’ll) eat in a restaurant.
Vivirá en NY. He will (he’ll) live in NY.
Decidiremos más tarde. We’ll decide later.
Trabajarán el lunes. They will work on Monday.

4. The conditional:
AR/ER/IR verbs all use the same endings BECAUSE: they attach to the entire infinitive
ÍA ÍAMOS
ÍAS ÍAIS
ÍA ÍAN
Notice they ALL have accents

5. SO
Yo necesitaría un libro para asistir la clase. I would (I’d) need a book to attend the class.
Cantarías bien. You would sing well. (you’d)
Viviría en NY. He would live in NY.
Trabajaríamos mucho. We would work a lot.
Se sentirían mal. They would feel badly.

6. Of course there are irregulars
Of course there are irregulars! The same for both tenses: add the endings to
Decir dir hacer har
Haber habr poder podr
Querer querr saber sabr
Poner pondr salir saldr
Tener tendr venir vendr
Diré la verdad. I will tell the truth.
Podríamos ir. We would be able to go.