there be 一般不用于进行时,
tere be句型在一般现在时,there is / are ..
There are fifty-two students in our class.
　　There is a pencil in my pencil-case.
一般过去时,there was / were ...
There was an old house by the river five years ago.
There were two old houses by the river five years ago.
一般将来时there will be / there is going to be
There will be a football next weekend .
There is going to be a football next weekend .