que: So A: What is the difference between ce qui, ce que and ce dont themselves? And when do you use c'est afterwards? EX: Ce qui m'interesse, c'est la langue. And why would you sometimes only use qui que or dont alone?|||You're really prying into the subtleties of the french language ! "ce qui" must be followed by a verb just like in your example; "ce que" must be followed by a pronoun or a subject as in "ce que je veux", "ce que l'annonceur dit"; "ce dont" usually refers to a topic at hand "ce dont je parle, c'est de la langue fran莽aise", "ce dont l'article discute, c'est de l'actualit茅"; "c'est" afterward is used when you need to expand on the first part of the sentence: "j'茅coute ce que l'annonceur dit", "ce que l'annonceur dit, c'est qu'il va faire beau". "qui", "que" or "dont" used without a preceding "ce" are quite basic and used to construct sentences; their use should be explained in grammar books.