关于there be 完成时的特殊疑问句和一般疑问句结构是什么?

问题描述:

关于there be 完成时的特殊疑问句和一般疑问句结构是什么?
如:There have been several private schools in our area this year.今年,我们这里已经有好几所私立学校了.一般疑问句:对several private schools 提问:对several 提问:

what has there been in your area this year?

how many private schools have there been in your area this year?