must chaffer
Regular verb: chaffer - chaffered- chaffered

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

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

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

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