Quando usar o HAVE como verbo auxiliar

Hi !!

I was talking (in english) with a friend today (or trying to talk.. hehe), and suddenly appeared a question.

When can we use the verb HAVE as auxiliary verb in a interrogative sentence ?? I tried to find an answer on google, but I didn't find any convincing answer.

I saw some sentences, for example, "Do you have any...", but I saw also some sentences when the verb HAVE is used as auxiliary to ask a question.

Please, could anyone help ?? When can I use HAVE as auxiliary verb in a interrogative sentence ??

Thank you very much !!!

(I'm sorry if I writed many wrong words, but i'm trying to get better... hehe).