1、There be的否定句构成和含有be动词的其它句型一样，在be后面加“not”。
语法公式：There be+no/not a+名词
Example：
There is a calender on the desk. 桌子上有一个日历。
—There isn't（is not ）calender on the desk. 桌子上没有日历。
—There is no calender on the desk. 桌子上没有日历。
1、There be结构的一般疑问句变化只要把be动词移到句首，再在句尾加上问号即可。
Example：
There are some books in her schoolbag. 她书包里有一些书。
—are there any book in her schoolbag？ 她书包里有书吗？
1、对主语提问。
当主语是人时，用“Who's+介词短语？”
Example：There is a cat in the kitchen. →what's in the kitchen?
当主语是物时，用“What's+介词短语？”
Example：There is a little girl in the room.→who is in the room？
（注意；无论原句的主语是单数还是复数，对其提问时一般都用be的单数形式，回答时却要根据实际情况来决定）。
2、对数量提问。
当主语是可数名词，无论是单数还是复数，都用“How many+可数名词复数+are there+介词短语？”
Example：
There are twelve months in a year.
—How many months are there in a year?
There is only one book in my bag.
—How many books are there in your bag?
当主语是不可数名词，则用“How much+不可数名词+is there+介词短语？”
Example：
There is some money in my purse.
—How much money is there in your purse？
1、There be表示“存在有”，通常是物做主语，而have/has表示“拥有、所有”，通常是人做主语，两者不能同时使用。
Example：
There are three books on the desk.
I have three books.
