LEARN SPANISH INDEFINITE PRONOUNS
Indefinite pronouns are used to substitute a noun in a vague way. They can express indefinite quantity or no quantity at all, diversity, equality, quality or intensity, distribution or indifference and quantity or intensity. In that way, we have:
Indefinite quantity or No quantity
Diversity, equality, quality or intensity
tal (-es) (such, certain)
igual (-es) (same)
semejante (-s) (similar)
propio/a/os/as (own, himself)
Distribution or indifference, quantity or intensity
cada uno (una) (each of)
cada cual (each one)
cualquiera que (whoever)
cualquiera (cualquier) (any, anyone)
unos/as cuantos/as (some, any)
demasiado/a/os/as (too much, too many, too)
mucho/a/os/as (much, many, alot)
poco/a/os/as (few, little, not much, not many)
todo/a/os/as (all, everything)
No poseo nada. (I do not possess anything).
In this example, "nada" (nothing) does not refer to a particular object but to every object in general.
*NOTE*: Nouns in Spanish have gender so, when you want to substitute them for a pronoun you have to bear that in mind and choose accordingly.
*NOTE* In Spanish, most of the pronouns go before the verb, unlike in English.