there be sb/sth 后什么时候加to do \doing \过去分词

there be sb/sth 后什么时候加to do \doing \过去分词

你好,在这个句子中的to do \doing 是作定语的,.
表示动作要发生在将来时要用to do,
如果动作是正在发生时,要用doing,
如果动作是表示被动的,要用过去分词
如下面的句子:
There is a lot of work to do this night.
Look , there are some people working there.
There is something to drink.
There are some ducks swimming in the river. 
There are many bikes repaired.
There are many trees cut down.

你好,在这个句子中的to do \doing 是作定语的,. 表示动作要发生在将来时要用to do, 如果动作是正在发生时,要用doing, 如果动作是表示被动的,要用过去分词 如下面的句子: there is a lot of work to do this night. look , there are some people working there. there is something to drink. there are some ducks swimming in the river. there are many bikes repaired. there are many trees cut down.