Is it correct to say does not in a sentence?

I'm curious, could you clarify for me if it's grammatically correct to use "does not" in a sentence? I've heard it used in various contexts, but I'm not entirely sure if it's always appropriate. For instance, would it be correct to say, "He does not like chocolate," or would there be a more suitable way to phrase it? Could you elaborate on the proper usage of "does not" and when it's most appropriate to use it?