C'est Paul qui a gagné le concours.
English: It is Paul who won the contest.
Emphatic constructions in French are ways to highlight or emphasize a specific part of a sentence. The most common structure is 'c'est... qui/que', used to put focus on a subject, object, or other element.
Use emphatic constructions in French when you want to highlight who did something, what was done, when, or where. They are often used to clarify, correct, or stress information in a sentence.
C'est Paul qui a gagné le concours.
English: It is Paul who won the contest.
C'est ce livre que je préfère.
English: It is this book that I prefer.
C'est hier que nous sommes partis.
English: It was yesterday that we left.
C'est à Paris qu'elle habite.
English: It is in Paris that she lives.