What are you doing? I'm / We're having a picnic.
We're having a picnic.
What are you doing? I'm playing on the swings / ball
I'm playing on the swings.
What are you doing? I'm run / running.
running
What are you doing? I am / We are riding bicycles.
We are riding bicycles.
What are you doing? I'm play/ playing ball.
I'm playing ball.
What are you doing? I'm / We're taking a walk
I'm taking a walk.
What are you doing? I'm take / taking a walk.
taking
What are you doing? I'm / We're riding a skateboard.
I'm riding a skateboard.
What are you doing? I'm /We're running.
We're running
What are you doing? I'm / We're riding bicycle.
I'm riding a bycycle.