* A question mark at the end. This is the most obvious indicator of an interrogative sentence.
* A specific word order. Often, the sentence begins with an interrogative word (who, what, where, when, why, how) or a helping verb (do, does, did, can, could, will, would, etc.). This helps signal that a question is being asked.
* A rising intonation. When spoken, interrogative sentences usually have a rising tone at the end, which further distinguishes them from declarative sentences.
Examples:
* What is your name?
* Where are you going?
* Do you like pizza?
* Did you see the movie?
* How are you feeling today?
Interrogative sentences are essential for gathering information, seeking clarification, and engaging in conversation.