(-) : My mum / draw
My mum isn't drawing.
(-) : I / cook
I'm not cooking.
(-) : I / drive
I am not driving.
(-) : Paul / sleep
Paul isn't sleeping.
(+) : My teacher / teach English
My teacher is teaching English.
(-) : They / watch
They aren't watching.
(?) : you / sing
Are you singing?
(?) : you / read
Are you reading?
(?) : Tom and Paul / ride
Are Tom and Paul riding?
(+) : She / come
She is coming.
(+) : The students / run
The students are running.
(?) : he / eat
Is he eating?
(?) : Tim / help
Is Tim helping?
(-) : John and I / clean
John and I aren't cleaning.
(+) : It / swim
It is swimming.