must demean
Regular verb: demean - demeaned- demeaned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must demean
you must demean
he must demean
we must demean
you must demean
they must demean 	I must be demeaning
you must be demeaning
he must be demeaning
we must be demeaning
you must be demeaning
they must be demeaning	I must have demeaned
you must have demeaned
he must have demeaned
we must have demeaned
you must have demeaned
they must have demeaned	I must have been demeaning
you must have been demeaning
he must have been demeaning
we must have been demeaning
you must have been demeaning
they must have been demeaning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't demean
you mustn't demean
he mustn't demean
we mustn't demean
you mustn't demean
they mustn't demean 	I mustn't be demeaning
you mustn't be demeaning
he mustn't be demeaning
we mustn't be demeaning
you mustn't be demeaning
they mustn't be demeaning	I mustn't have demeaned
you mustn't have demeaned
he mustn't have demeaned
we mustn't have demeaned
you mustn't have demeaned
they mustn't have demeaned	I mustn't have been demeaning
you mustn't have been demeaning
he mustn't have been demeaning
we mustn't have been demeaning
you mustn't have been demeaning
they mustn't have been demeaning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I demean?
must you demean?
must he demean?
must we demean?
must you demean?
must they demean? 	must I be demeaning?
must you be demeaning?
must he be demeaning?
must we be demeaning?
must you be demeaning?
must they be demeaning? 	must I have demeaned?
must you have demeaned?
must he have demeaned?
must we have demeaned?
must you have demeaned?
must they have demeaned? 	must I have been demeaning?
must you have been demeaning?
must he have been demeaning?
must we have been demeaning?
must you have been demeaning?
must they have been demeaning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I demean?
mustn't you demean?
mustn't he demean?
mustn't we demean?
mustn't you demean?
mustn't they demean? 	mustn't I be demeaning?
mustn't you be demeaning?
mustn't he be demeaning?
mustn't we be demeaning?
mustn't you be demeaning?
mustn't they be demeaning? 	mustn't I have demeaned?
mustn't you have demeaned?
mustn't he have demeaned?
mustn't we have demeaned?
mustn't you have demeaned?
mustn't they have demeaned? 	mustn't I have been demeaning?
mustn't you have been demeaning?
mustn't he have been demeaning?
mustn't we have been demeaning?
mustn't you have been demeaning?
mustn't they have been demeaning?