Spanish relative pronouns: que, quien, el que and lo que

Relative pronouns are the little words that join two ideas into one sentence — the Spanish equivalents of “that”, “which”, “who” and “whose”. The good news is that one word, que, covers the vast majority of cases: it works for people and things, as subject or object, and it never changes form. El libro que leo (the book that I read), la mujer que habla (the woman who speaks).

The other relatives solve specific problems: quien for a person after a preposition, el que / el cual when you need to mark gender or add clarity, cuyo for “whose”, and lo que for “what” as in “the thing that”. The table gives the map, and the sections show when each one earns its place.

Que: the all-purpose relative

Que is the workhorse. It refers to people or things, singular or plural, and it can be the subject or the object of its clause. It never changes and, unlike English, it can never be dropped.

La casa que compramos es antigua.
The house (that) we bought is old.

El hombre que vive aquí es médico.
The man who lives here is a doctor.

English often omits the relative (“the house we bought”), but Spanish always keeps que. If you are unsure which relative to use and there is no preposition involved, que is almost always right.

Quien: people after a preposition

When the relative refers to a person and follows a preposition (con, a, de, para, sin), Spanish prefers quien (plural quienes) over bare que.

El amigo con quien viajo es español.
The friend I travel with is Spanish.

Los vecinos de quienes te hablé se mudan.
The neighbours I told you about are moving.

Without a preposition, you still use que for people (la mujer que habla), so quien is mainly the “person + preposition” choice. In defining clauses many speakers also accept el que here (con el que), which the next section covers.

El que and el cual: clarity and gender

El que, la que, los que, las que — and the more formal el cual family — step in when you need to show gender and number, or after longer prepositions, where plain que would be ambiguous.

La razón por la que vine es simple.
The reason (for) which I came is simple.

Hay dos puertas, una de las cuales está cerrada.
There are two doors, one of which is closed.

Because these forms carry gender (la que, los que), they point clearly back to the right noun when a sentence has several candidates. El cual sounds more formal and is common in writing and after longer prepositions like según, durante or mediante.

Cuyo: “whose”

Cuyo means “whose” and links a thing to its owner. It is unusual among the relatives because it agrees with the thing possessed, not the owner: cuyo, cuya, cuyos, cuyas.

El escritor cuya novela ganó el premio es joven.
The writer whose novel won the prize is young.

Here cuya is feminine because novela is feminine, even though the owner (the writer) may be a man. Cuyo belongs mostly to writing and careful speech; in casual conversation people often rephrase, but you should recognize it and be able to read it.

Lo que: “what” as “the thing that”

Lo que is the neuter relative. It does not point back to a specific noun but to a whole idea or an unnamed thing — English “what” in the sense of “the thing that”.

No entiendo lo que dices.
I don’t understand what you are saying.

Lo que me gusta es viajar.
What I like is travelling.

Do not confuse this lo que with the question word qué. In a question you write ¿Qué dices? (What are you saying?) with an accent, but the relative that joins clauses is unstressed lo que, with no accent and no question marks.

Common mistakes

Dropping the relative like English

Spanish never omits the relative pronoun, even when English does.

El libro compré es caro. → El libro que compré es caro.
The book (that) I bought is expensive.

Using que instead of quien after a preposition with a person

For a person after a preposition, use quien (or el que), not bare que.

La persona con que hablo. → La persona con quien hablo.
The person I’m talking to.

Making cuyo agree with the owner

Cuyo agrees with the thing owned, not the owner.

El autor cuyo novela leí. → El autor cuya novela leí.
The author whose novel I read.

Relative pronouns are how you stop speaking in short, choppy sentences and start linking ideas the way native speakers do. Lean on que for almost everything, add quien after a preposition with people, and keep lo que for “the thing that”. In Fluera you meet these joins inside real sentences with audio, so the connections become natural. Build longer, smoother sentences when you practice Spanish.

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