Purpose

By the end of this lesson, you will be able to correctly use the main Italian relative pronouns to combine sentences and add descriptive clauses.

Lesson Explanation

Che (that/which/who) is by far the most common relative pronoun, used for both people and things as either subject or direct object, and — like Spanish que — is never optional:

Il libro che ho letto è interessante. — The book that I read is interesting.
La donna che è venuta è mia sorella. — The woman who came is my sister.

Cui is used specifically after a preposition (for both people and things) — a genuinely distinctive fact with no equivalent single-word rule in Spanish’s more flexible quien:

La donna con cui ho parlato è dottoressa. — The woman with whom I spoke is a doctor.
Il libro di cui parlo è famoso. — The book I'm talking about (literally "of which I speak") is famous.

Il quale / la quale / i quali / le quali is a more formal alternative to both che and cui, genuinely useful specifically because it shows gender and number, resolving ambiguity that che and cui alone cannot: Ho parlato con il fratello di Anna, il quale è medico. (I spoke with Anna’s brother, who is a doctor — “il quale” clarifies the doctor is the brother, not Anna, which “che” alone would leave ambiguous.)

A genuinely important error to avoid: like Spanish que, Italian che can never be dropped — “the book I read” must still include che: il libro che ho letto, never “il libro ho letto.”

Practice Questions