Positive
She is ice skating.
Positive
He is climbing
Positive
They are eating / having lunch
Negative
They aren't drinking water
Negative
They aren't playing football.
Positive
The cat / It is reading
Positive
He / she is running
Positive
They are running
Negative
They aren't playing rugby
Positive
The dog / It is talking on the phone
Positive
The dog/It is swimming
Negative
He isn't dancing
Positive
She is studying / writing / doing her homework
Positive
She is playing tennis.
Negative
They aren't swimming
Positive
They are roller skating
Negative
He isn't climbing a mountain
Negative
They aren't dancing