Of course, I would be happy to answer your question!

Interrogative sentences are sentences that are used to ask questions. They are used to seek information or clarification about something. In English, interrogative sentences usually begin with a verb or a helping verb.

Here is a detailed explanation of interrogative sentences:

Definition:
Interrogative sentences are sentences that are used to ask questions and seek information or clarification about something.

Structure:
Interrogative sentences typically follow a specific structure. They usually begin with a verb or a helping verb and are followed by the subject and the rest of the sentence. The verb or helping verb is often placed before the subject in order to form a question.

Examples:
Here are some examples of interrogative sentences:

1. Are you going to the party?
2. Did you finish your homework?
3. What time is it?
4. Have you seen my keys?
5. Can I borrow your pen?

In these examples, the verbs "are," "did," "is," "have," and "can" are used at the beginning of the sentences to form questions.

Types of Interrogative Sentences:
There are different types of interrogative sentences based on the type of information being sought:

1. Yes/No Questions: These questions are used to seek a simple "yes" or "no" answer. Examples include: "Are you hungry?" and "Did you watch the movie?"

2. Wh-Questions: These questions seek information about a specific aspect. They begin with question words such as "what," "where," "when," "why," "who," and "how." Examples include: "What is your favorite color?" and "Where are you going?"

Importance:
Interrogative sentences are important because they allow us to gather information, seek clarification, and engage in conversations. They enable effective communication by facilitating the exchange of ideas and thoughts.

Conclusion:
Interrogative sentences are an essential part of communication. They are used to ask questions and seek information or clarification about something. By using the appropriate structure and question words, we can effectively communicate and gather the information we need.