I/dance.
I am dancing.
I/cook. (-)
I'm not cooking.
She/sing (-)
She isn't singing.
They/eat biscuits. (+)
Theay are eating biscuits.
Tom/watch TV. (+)
Tom is watching TV.
Angela and I/work (-)
Angela and I aren't working.
We/help our mum (-)
We aren't helping our mum.
You/playing tennis (-)
You aren't playing tennis
Vanessa and Jack/drink milk (+)
Vanessa and Jack are drinking milk.
Sara/do her homework.
Sara is doing her homework.
He/run (-)
He isn't running.
You/sleep. (+)
You are sleeping.
We/talk. (+)
We are talking.
They/swim (-)
They aren't swimming