The reflexive construction, used mainly with pronominal verbs, can also be used passively to describe accidental and unplanned occurrences. This is called la voz media in Spanish.
Demonstrative pronouns (this one, that one, the one[s], these, those) refer to a previously-mentioned noun in a sentence. Spanish demonstrative pronouns are more complicated than their English counterparts, because there are three different sets and because they must agree in gender and number with the noun they replace.
A direct object is a noun, whether person or thing, that someone or something acts upon or does something to. In both Spanish and English, direct objects are often replaced with direct object pronouns: me, te, lo, la, nos, os, los, las.
The Spanish relative pronoun donde means “where” and is often preceded by a preposition.
Sometimes one pronoun just isn’t enough. A Spanish sentence might need both a direct and indirect object, or a reflexive pronoun plus an object. These "double pronouns" cannot be separated, but the word order is very simple.
The Spanish relative pronoun el cual usually means “who” or “whom” and has four different forms.
The Spanish relative pronoun el que usually means “who” or “whom” and has four different forms.
Ello is the Spanish neuter subject pronoun, used to mean “it” or “this” when referring to something non-specific, such as a situation or idea.
Ello is the Spanish neuter tonic pronoun, used to mean “it” or “this” after a preposition when referring to something non-specific, such as a situation or idea.
Indefinite pronouns are vague – they either refer to unspecific nouns (like un otro and algo) or make sweeping generalizations (cada uno, todo).