Pronombres y Determinantes - Pronombres relativos nominales

used to represent an entire idea, concept, or clause within a sentence that acts as the subject or object of the verb or preposition

lo que, qué

used to represent a clause, idea, or concept that acts as the subject or object of the verb or preposition

cuál, la cual

used to represent the time when something happens as the subject or object of verb or preposition

cuándo, cuando

used to represent the place where something took place as the subject or object of verb or preposition

donde, donde sea

used to represent a person as the subject or object of verb or preposition in a sentence

quién

used to introduce the reason for an action as the subject or object of the verb or preposition

por qué, la razón por la cual

used to represent the manner, method, or means of fulfilling an action as the subject or object of verb or preposition

cómo

used to represent the person who receives the action of the verb in the relative clause as the subject or object of verb or preposition

quien, a quien

used to represent anything or everything as the subject or object of verb or preposition

lo que sea, cualquier cosa que tú

used as a placeholder in the sense of any one that or any one of those that

cualquiera, el que

used as a placeholder to refer to the time something happens

Siempre que, Cuando llegues

used as a place holder to refer to a place

dondequiera que estés, cualquier lugar donde estés

used as a placeholder in the sense of any person who or anyone who

quien sea, cualquiera que

used as a placeholder of object of verb or preposition in the sense of any person who

quienquiera, a quien sea