{{Grammar Box}} Sometimes you want to explain that an object, concept, or event isn't one thing, but in fact a different thing. This is the perfect structure to convey that in Chinese. == Structure == "不是⋯⋯, (而)是⋯⋯" (bùshì..., (ér)shì...) is used to clarify something about a certain noun. What's being clarified can be noun phrases or verb phrases.