can chaffer
Regular verb: chaffer - chaffered- chaffered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can chaffer
you can chaffer
she can chaffer
we can chaffer
you can chaffer
they can chaffer 	I can be chaffering
you can be chaffering
she can be chaffering
we can be chaffering
you can be chaffering
they can be chaffering	I can have chaffered
you can have chaffered
she can have chaffered
we can have chaffered
you can have chaffered
they can have chaffered	I can have been chaffering
you can have been chaffering
she can have been chaffering
we can have been chaffering
you can have been chaffering
they can have been chaffering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot chaffer
you cannot chaffer
she cannot chaffer
we cannot chaffer
you cannot chaffer
they cannot chaffer 	I cannot be chaffering
you cannot be chaffering
she cannot be chaffering
we cannot be chaffering
you cannot be chaffering
they cannot be chaffering	I cannot have chaffered
you cannot have chaffered
she cannot have chaffered
we cannot have chaffered
you cannot have chaffered
they cannot have chaffered	I cannot have been chaffering
you cannot have been chaffering
she cannot have been chaffering
we cannot have been chaffering
you cannot have been chaffering
they cannot have been chaffering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I chaffer?
can you chaffer?
can she chaffer?
can we chaffer?
can you chaffer?
can they chaffer? 	can I be chaffering?
can you be chaffering?
can she be chaffering?
can we be chaffering?
can you be chaffering?
can they be chaffering? 	can I have chaffered?
can you have chaffered?
can she have chaffered?
can we have chaffered?
can you have chaffered?
can they have chaffered? 	can I have been chaffering?
can you have been chaffering?
can she have been chaffering?
can we have been chaffering?
can you have been chaffering?
can they have been chaffering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not chaffer?
can you not chaffer?
can she not chaffer?
can we not chaffer?
can you not chaffer?
can they not chaffer? 	can I not be chaffering?
can you not be chaffering?
can she not be chaffering?
can we not be chaffering?
can you not be chaffering?
can they not be chaffering? 	can I not have chaffered?
can you not have chaffered?
can she not have chaffered?
can we not have chaffered?
can you not have chaffered?
can they not have chaffered? 	can I not have been chaffering?
can you not have been chaffering?
can she not have been chaffering?
can we not have been chaffering?
can you not have been chaffering?
can they not have been chaffering?