Sentence examples for is a case from inspiring English sources

"is a case" is a correct and usable phrase in written English.
It is often used to describe a specific situation or example that supports a larger argument or point. Example: "The recent increase in crime rates in our city is a case that highlights the need for stricter law enforcement policies." In this sentence, "is a case" is used to introduce a particular example (the increase in crime rates) that serves as evidence for the larger argument that stricter law enforcement policies are necessary.