(sail)
Are they sailing? No, they aren't. They're surfing.
(X)
Don't go through the trees.
(X)
Don't go along the river.
(skateboard)
Are they skateboarding? Yes, they are. They're skateboarding.
(jump rope)
Are they jumping rope? Yes, they are. They're jumping rope.
(O)
Go through the trees.
(X)
Don't go down the steps.
(O)
Go down the steps.
(play basketball)
Are they playing basketball? No, they aren't. They're doing judo.
(X)
Don't past the house.
(O)
Go past the house.
(O)
Go along the river.
(O)
Go over the bridge.
(cycle)
Are they cycling? Yes,they are. They're cycling.
(X)
Don't go over the bridge.
(X)
Don't go up the hill.
(play chess)
Are they playing chess? No, they aren't. They're playing table tennis.
(O)
Go up the hill.
(ice skate)
Are they ice skating? Yes, they are. They're ice skating.