What is he doing?
He is play basketball
He is playing basketball
He is plays basketball
He playing basketball
What is she doing? (swim)
She is swimming
She's swimming
What is she doing? (drive)
She is driving
She's driving
What is she doing?
She is reading
She be reading
She are reading
She reading
What is he doing? (ride a bike)
He´s riding a bike
He`s riding a bike
He is riding a bike
He's riding a bike