Sentence examples for in a fight from inspiring English sources

The phrase "in a fight" is grammatically correct and can be used in written English.
It is commonly used to describe a physical or verbal altercation between two or more people. Example: "The two brothers were in a fight over who would get to use the car for the evening." In this sentence, "in a fight" is used to indicate that the brothers were engaged in a disagreement or argument that can potentially lead to physical violence.