I / have a shower/ right now (-)
I'm not having a shower right now.
I / drink juice/ at the moment (+)
I am drinking juice at the moment.
The cat / dive (-)
The cat isn't diving.
Are they swimming now?
No, they aren't.
Salem / have breakfast (?)
Is Salem having breakfast?
Bart / listen to music/ right now (-)
Bart isn't listening to music right now.
Is SpongeBob reading a book?
No, he isn't.
Is he playing chess?
Yes, he is.
I / do my homework / now (+)
I am doing my homework now.
It / rain (+)
It is raining.
Claire / cook (+)
Claire is cooking now.