I just don't understand when and how we can use “se” in French. I know we can say: Je me lave. Je me suis dit. But, other than that, I have no idea. Is there a rule you have to follow when ...
What's the meaning of the phrase "excuser et s'excuser"? Why is a s' used before the verb? (It is the title of a chapter in my French book, if the context is needed.)