English verb conjugation
COULD SNOOKER

Regular verb: snooker - snookered - snookered

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?