"Do" Sentences:
* Do you like pizza?
* Do you want to go to the movies tonight?
* Do you know where the library is?
* Do you have any siblings?
* Do the birds sing in the morning?
"Does" Sentences:
* Does she like to dance?
* Does he play the piano?
* Does the store close early today?
* Does your car get good gas mileage?
* Does that movie have a happy ending?
These examples illustrate how "do" and "does" are used as auxiliary verbs in questions. They are also used in negative sentences, such as:
* Do you not understand?
* Does he not know the answer?
Remember, "do" is used with plural subjects and the pronoun "you," while "does" is used with singular subjects.