Here are some key features of interrogative sentences:
* Word order: They often begin with a question word (who, what, where, when, why, how) or an auxiliary verb (do, does, did, have, has, had, will, would, can, could, may, might, should).
* Purpose: Their purpose is to elicit information or confirmation.
* Examples:
* "What is your name?" (begins with a question word)
* "Do you like pizza?" (begins with an auxiliary verb)
* "Is the movie starting soon?" (begins with an auxiliary verb)
* "Where did you go last night?" (begins with a question word and auxiliary verb)
Let me know if you'd like more examples or have any other questions!