Question

Convert the following into Past Perfect Continuous Tense.



Birds .................... (chirp) in the trees. *



had chirping

have been chirping

had been chirping

had been chirpping

​

Answer 1

Answer:

had been chirping

Explanation:

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Answer 2

Answer:Birds had been chirping in the trees.

Explanation:In past perfect continuous tense

Had been is used with plural

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