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 could not snooker you could not snooker he could not snooker we could not snooker you could not snooker they could not snooker	I could not be snookering you could not be snookering he could not be snookering we could not be snookering you could not be snookering they could not be snookering
Perfect	V-ing perfect
I could not have snookered you could not have snookered he could not have snookered we could not have snookered you could not have snookered they could not have snookered	I could not have been snookering you could not have been snookering he could not have been snookering we could not have been snookering you could not have been snookering they could not 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
could I not snooker? could you not snooker? could he not snooker? could we not snooker? could you not snooker? could they not snooker?	could I not be snookering? could you not be snookering? could he not be snookering? could we not be snookering? could you not be snookering? could they not be snookering?
Perfect	V-ing perfect
could I not have snookered? could you not have snookered? could he not have snookered? could we not have snookered? could you not have snookered? could they not have snookered?	could I not have been snookering? could you not have been snookering? could he not have been snookering? could we not have been snookering? could you not have been snookering? could they not have been snookering?