could coffer
Regular verb: coffer - coffered- coffered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could coffer
you could coffer
he could coffer
we could coffer
you could coffer
they could coffer 	I could be coffering
you could be coffering
he could be coffering
we could be coffering
you could be coffering
they could be coffering	I could have coffered
you could have coffered
he could have coffered
we could have coffered
you could have coffered
they could have coffered	I could have been coffering
you could have been coffering
he could have been coffering
we could have been coffering
you could have been coffering
they could have been coffering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't coffer
you couldn't coffer
he couldn't coffer
we couldn't coffer
you couldn't coffer
they couldn't coffer 	I couldn't be coffering
you couldn't be coffering
he couldn't be coffering
we couldn't be coffering
you couldn't be coffering
they couldn't be coffering	I couldn't have coffered
you couldn't have coffered
he couldn't have coffered
we couldn't have coffered
you couldn't have coffered
they couldn't have coffered	I couldn't have been coffering
you couldn't have been coffering
he couldn't have been coffering
we couldn't have been coffering
you couldn't have been coffering
they couldn't have been coffering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I coffer?
could you coffer?
could he coffer?
could we coffer?
could you coffer?
could they coffer? 	could I be coffering?
could you be coffering?
could he be coffering?
could we be coffering?
could you be coffering?
could they be coffering? 	could I have coffered?
could you have coffered?
could he have coffered?
could we have coffered?
could you have coffered?
could they have coffered? 	could I have been coffering?
could you have been coffering?
could he have been coffering?
could we have been coffering?
could you have been coffering?
could they have been coffering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I coffer?
couldn't you coffer?
couldn't he coffer?
couldn't we coffer?
couldn't you coffer?
couldn't they coffer? 	couldn't I be coffering?
couldn't you be coffering?
couldn't he be coffering?
couldn't we be coffering?
couldn't you be coffering?
couldn't they be coffering? 	couldn't I have coffered?
couldn't you have coffered?
couldn't he have coffered?
couldn't we have coffered?
couldn't you have coffered?
couldn't they have coffered? 	couldn't I have been coffering?
couldn't you have been coffering?
couldn't he have been coffering?
couldn't we have been coffering?
couldn't you have been coffering?
couldn't they have been coffering?