There be 句型的构成形式一般为“There is/are + 某物/人 +某地/时”，表示某地/时有某物/人, be可以是表示存在的动词，例如lie，stand，appear to be。
There be 后接名词加主语的倒装形式。疑问句形式是将be或will/have/can/must等助动词、情态动词提至there之前，否定形式则直接在be或助动词、情态动词后加not，因此要表达“某个地方或某个时间存在什么事物或人”的时候常用“There be + 名词+ 地点（时间）这一句型。
就近原则：be和其后的主语在数上一致
eg. There are five books,two pens and a ruler in the school bag.
There is a ruler,two pens and five books in the school bag.
单复数：主语是复数却表示整体时，仍使用is。
eg. There is still another 20 miles to drive.
There is no 加 v-ing = It is impossible to 加 v原形：
eg. There is no knowing what happened on him. =It is impossible to know what happened on him.
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