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