Question

Birds fly in the sky, change it into 4 kind of past tense

Answer 1

Answer:

a. Birds flew in the sky.

b. Birds were flying in the sky.

c. Birds had flown in the sky.

d. Birds had been flying in the sky.

Answer 2

Answer:

simple past =>bird flew in the sky

Past continuous => bird was flying in the sky

past perfect => Bird had flown in the sky

past perfect continuous => bird had been flying in the sky