■ there be 結構中的be必須隨著be後面名詞的數及句子後面的時間，使用不同的形式或時態。如：
(1) There are fifty chairs, desks and a blackboard in our classroom.
我們的教室裡有五十把椅子、五十張課桌和一塊黑板。
(比較) There is a blackboard, fifty chairs and desks in our classroom.
我們教室裡有一塊黑板、五十把椅子和五十張課桌。
(2) There werent any high buildings in the village twenty years ago.
二十年前，村子裡沒有高樓大廈。
■ there be結構可與情態動詞can, could, will, would, must, may, might, ought to 及某些不及物動詞seem, appear, happen等連用，如：
(1) Do go into the hole, for there can be snakes in it.
不要進到洞裡面去，因為洞裡可能有蛇。
(2) The car doesnt run. There must be something wrong with it.
車不走了，肯定出了毛病。
(3) There seemed to be some people in the room, for the water is still hot.
