can pucker
Regular verb: pucker - puckered- puckered

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

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

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

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