Celui qui parle est mon frère.
English: The one who is speaking is my brother.
Demonstrative pronouns in French are words used to replace a noun that has already been mentioned or is obvious from context, to point out or identify something or someone.
Use French demonstrative pronouns to refer back to something previously mentioned, to distinguish between things or people, or to avoid repeating a noun. They are often used with clauses or phrases that give more information.
Celui qui parle est mon frère.
English: The one who is speaking is my brother.
Celle que tu vois là-bas est ma voiture.
English: The one you see over there is my car.
Ceux-ci sont plus chers que ceux-là.
English: These ones are more expensive than those ones.
Celles que j’ai achetées sont rouges.
English: The ones I bought are red.
Je préfère celle-ci à celle-là.
English: I prefer this one to that one.