✅
She's cooking now.
✅
They're jumping now.
✅
He's riding a bike now.
✅
She's singing a song now.
❌
He isn't playing the guitar now.
✅
She's catching a ball now.
❌
They aren't cooking now.
❌
They aren't flying a kite now.
✅
They are staying at home now.
✅
They are doing gymnastics now.
✅
They are having music lesson now.
✅
They aren't reading books now.
