basketball
He is terrible at basketball.
arts
They are very good at arts.
basketball
He is good at basketball.
swim
She is good at swimming./She is quite good at swimming
run
They are good at running./They are quite good at running.
maths
He isn't very good at maths.
cook
They are bad at cooking. / They are terrible at cooking.
take photos
He is good at taking photos.
windsurfing
She isn't very good at windsurfing
swim
He is bad at swimming.
arts
She isn't very good at arts.
cook
He is very good at cooking. He is good at cooking.
windsurf
She is good at windsurfing.
run
He isn't very good at running. He is bad at running.
maths
He is very good at maths.