两只小鸟正在树上歌唱，英文翻译

如题

There`re two brids singing in the tree .
注意：在树上翻译，本来长在树上：on the tree 外来物在树上：in the tree

There are two birds singing in the tree

i called jack once or twice

i heard that a bird was singing in the tree.

Two birds are singing in the tree.

There are two birds singing in the tree.(there be 结构） Or Two birds are singing in the tree.（主动结构） 比较提倡用there be 结构

There are two birds singing in the tree. Two birds are singing in the tree.