could glister
Regular verb: glister - glistered- glistered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could glister
you could glister
he could glister
we could glister
you could glister
they could glister 	I could be glistering
you could be glistering
he could be glistering
we could be glistering
you could be glistering
they could be glistering	I could have glistered
you could have glistered
he could have glistered
we could have glistered
you could have glistered
they could have glistered	I could have been glistering
you could have been glistering
he could have been glistering
we could have been glistering
you could have been glistering
they could have been glistering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't glister
you couldn't glister
he couldn't glister
we couldn't glister
you couldn't glister
they couldn't glister 	I couldn't be glistering
you couldn't be glistering
he couldn't be glistering
we couldn't be glistering
you couldn't be glistering
they couldn't be glistering	I couldn't have glistered
you couldn't have glistered
he couldn't have glistered
we couldn't have glistered
you couldn't have glistered
they couldn't have glistered	I couldn't have been glistering
you couldn't have been glistering
he couldn't have been glistering
we couldn't have been glistering
you couldn't have been glistering
they couldn't have been glistering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I glister?
could you glister?
could he glister?
could we glister?
could you glister?
could they glister? 	could I be glistering?
could you be glistering?
could he be glistering?
could we be glistering?
could you be glistering?
could they be glistering? 	could I have glistered?
could you have glistered?
could he have glistered?
could we have glistered?
could you have glistered?
could they have glistered? 	could I have been glistering?
could you have been glistering?
could he have been glistering?
could we have been glistering?
could you have been glistering?
could they have been glistering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I glister?
couldn't you glister?
couldn't he glister?
couldn't we glister?
couldn't you glister?
couldn't they glister? 	couldn't I be glistering?
couldn't you be glistering?
couldn't he be glistering?
couldn't we be glistering?
couldn't you be glistering?
couldn't they be glistering? 	couldn't I have glistered?
couldn't you have glistered?
couldn't he have glistered?
couldn't we have glistered?
couldn't you have glistered?
couldn't they have glistered? 	couldn't I have been glistering?
couldn't you have been glistering?
couldn't he have been glistering?
couldn't we have been glistering?
couldn't you have been glistering?
couldn't they have been glistering?