could pucker
Regular verb: pucker - puckered- puckered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could pucker
you could pucker
she could pucker
we could pucker
you could pucker
they could pucker 	I could be puckering
you could be puckering
she could be puckering
we could be puckering
you could be puckering
they could be puckering	I could have puckered
you could have puckered
she could have puckered
we could have puckered
you could have puckered
they could have puckered	I could have been puckering
you could have been puckering
she could have been puckering
we could have been puckering
you could have been puckering
they could have been puckering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't pucker
you couldn't pucker
she couldn't pucker
we couldn't pucker
you couldn't pucker
they couldn't pucker 	I couldn't be puckering
you couldn't be puckering
she couldn't be puckering
we couldn't be puckering
you couldn't be puckering
they couldn't be puckering	I couldn't have puckered
you couldn't have puckered
she couldn't have puckered
we couldn't have puckered
you couldn't have puckered
they couldn't have puckered	I couldn't have been puckering
you couldn't have been puckering
she couldn't have been puckering
we couldn't have been puckering
you couldn't have been puckering
they couldn't have been puckering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I pucker?
could you pucker?
could she pucker?
could we pucker?
could you pucker?
could they pucker? 	could I be puckering?
could you be puckering?
could she be puckering?
could we be puckering?
could you be puckering?
could they be puckering? 	could I have puckered?
could you have puckered?
could she have puckered?
could we have puckered?
could you have puckered?
could they have puckered? 	could I have been puckering?
could you have been puckering?
could she have been puckering?
could we have been puckering?
could you have been puckering?
could they have been puckering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I pucker?
couldn't you pucker?
couldn't she pucker?
couldn't we pucker?
couldn't you pucker?
couldn't they pucker? 	couldn't I be puckering?
couldn't you be puckering?
couldn't she be puckering?
couldn't we be puckering?
couldn't you be puckering?
couldn't they be puckering? 	couldn't I have puckered?
couldn't you have puckered?
couldn't she have puckered?
couldn't we have puckered?
couldn't you have puckered?
couldn't they have puckered? 	couldn't I have been puckering?
couldn't you have been puckering?
couldn't she have been puckering?
couldn't we have been puckering?
couldn't you have been puckering?
couldn't they have been puckering?