To build complex, elegant sentences, you need **Relative Pronouns**. They connect ideas so you don't sound like a robot.
Replaces the Subject (who/which).
L'homme qui parle.The man who is speaking.
Replaces the Direct Object (that/which).
Le livre que je lis.The book that I am reading.
Means "where" or "when".
La ville où j'habite.
Replaces "de" + object (of which).
Le film dont je parle.