could snooker
Regular verb: snooker - snookered- snookered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could snooker
you could snooker
he could snooker
we could snooker
you could snooker
they could snooker 	I could be snookering
you could be snookering
he could be snookering
we could be snookering
you could be snookering
they could be snookering	I could have snookered
you could have snookered
he could have snookered
we could have snookered
you could have snookered
they could have snookered	I could have been snookering
you could have been snookering
he could have been snookering
we could have been snookering
you could have been snookering
they could have been snookering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't snooker
you couldn't snooker
he couldn't snooker
we couldn't snooker
you couldn't snooker
they couldn't snooker 	I couldn't be snookering
you couldn't be snookering
he couldn't be snookering
we couldn't be snookering
you couldn't be snookering
they couldn't be snookering	I couldn't have snookered
you couldn't have snookered
he couldn't have snookered
we couldn't have snookered
you couldn't have snookered
they couldn't have snookered	I couldn't have been snookering
you couldn't have been snookering
he couldn't have been snookering
we couldn't have been snookering
you couldn't have been snookering
they couldn't have been snookering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I snooker?
could you snooker?
could he snooker?
could we snooker?
could you snooker?
could they snooker? 	could I be snookering?
could you be snookering?
could he be snookering?
could we be snookering?
could you be snookering?
could they be snookering? 	could I have snookered?
could you have snookered?
could he have snookered?
could we have snookered?
could you have snookered?
could they have snookered? 	could I have been snookering?
could you have been snookering?
could he have been snookering?
could we have been snookering?
could you have been snookering?
could they have been snookering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I snooker?
couldn't you snooker?
couldn't he snooker?
couldn't we snooker?
couldn't you snooker?
couldn't they snooker? 	couldn't I be snookering?
couldn't you be snookering?
couldn't he be snookering?
couldn't we be snookering?
couldn't you be snookering?
couldn't they be snookering? 	couldn't I have snookered?
couldn't you have snookered?
couldn't he have snookered?
couldn't we have snookered?
couldn't you have snookered?
couldn't they have snookered? 	couldn't I have been snookering?
couldn't you have been snookering?
couldn't he have been snookering?
couldn't we have been snookering?
couldn't you have been snookering?
couldn't they have been snookering?