I can see the birds are singing in the tree.这句话对吗?

问题描述:

I can see the birds are singing in the tree.这句话对吗?

没什么问题.动词see后可以接that从句(that可省略)
当然去掉are使其变成一个动词(see)加宾语(birds)加宾补(singing)的结构更常见.