Question

birds are sitting on the tree change into past perfect continuous​

Answer 1

Answer:

$\boxed{\pink{!\:Answer\:!}}$

$\boxed{\red{!\:Birds-had-been-sitting-on- the-tree-since-morning.\:!}}$

Answer 2

Explanation:

past perfect continuous

subject+has/have+been+v ing +object

birds have been sitting till morning on the tree

plzz mark me as brainiest