The interrogative mood is a grammatical form used to ask questions. It typically involves a change in word order or the addition of auxiliary verbs to indicate that a response is expected. For example, in the sentence “Are you coming?” the structure signals that the speaker is seeking information. In English, interrogative sentences can be formed in various ways, such as using wh- words like “what,” “where,” and “how,” or by inverting the subject and auxiliary verb. This mood is essential for communication, allowing individuals to gather information and clarify understanding in conversations.