Question

The birds flies in the sky

Answer 1

Hey There!!!

The given sentence is Birds fly in the sky. This sentence is in the Simple Present Tense. 

Here we can write it in all the tenses as follows: 

Simple Present : Birds fly in the sky.

Simple Past : Birds flew in the sky.

Simple Future : Birds will fly in the sky.

Present Continuous : Birds are flying in the sky.

Past Continuous : Birds were flying in the sky.

Future Continuous : Birds will be flying in the sky.

Present Perfect : Birds have flown in the sky.

Past Perfect : Birds had flown in the sky.

Future Perfect : Birds will have flown in the sky.

Present Perfect Continuous : Birds have been flying in the sky.

Past Perfect Continuous : Birds had been flying in the sky.

Future Perfect Continuous : Birds will have been flying in the sky.