Interrogative adjectives are used in Bosnian grammar to ask questions about the characteristics of a noun, such as its quantity, type, or size. These adjectives are placed in front of the noun they’re referring to. In Bosnian, the interrogative adjectives are “koji” (which), “čiji” (whose), and “koliko” (how many/how much). When forming a question, it’s essential to match the interrogative adjective with the gender, number, and case of the noun it modifies.