I am ... a bicycle.
I am riding a bicycle.
Jenny ... doing yoga.
Jenny is doing yoga.
... we jogging?
are we jogging?
Helen is ... aerobics.
Helen is doing aerobics.
We ... playing tennis, we are playing soccer.
We aren't playing tennis, we are playing soccer.
Charles ... running from the police.
Charles is running from the police.
I ... shopping in the mall. That's my cardio.
I am shopping in the mall. That's my cardio.
Eric and I ... playing tennis.
Eric and I are playing tennis.
... she swimming?
Is she swimming?
Denis is ... volleyball.
Denis is playing volleyball.