Yes/No Questions:
* Are you going to the party?
* Did you finish your homework?
* Is it raining outside?
* Can you swim?
* Has she ever been to Paris?
Wh-Questions:
* What is your name?
* Where do you live?
* When will you graduate?
* Why are you late?
* How old are you?
* Who is your favorite author?
* Which movie did you watch last night?
* Whose car is this?
Tag Questions:
* It's a beautiful day, isn't it?
* You like pizza, don't you?
* They are coming tomorrow, aren't they?
* He doesn't know her, does he?
* She can't drive, can she?
Other Interrogative Sentences:
* Could you please pass the salt? (Request)
* Would you mind helping me with this? (Polite request)
* Do you have any questions? (Inquiry)
* Is there anything I can do for you? (Offer of help)
Remember: Interrogative sentences always end with a question mark (?).