must demand
Regular verb: demand - demanded- demanded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must demand
you must demand
she must demand
we must demand
you must demand
they must demand 	I must be demanding
you must be demanding
she must be demanding
we must be demanding
you must be demanding
they must be demanding	I must have demanded
you must have demanded
she must have demanded
we must have demanded
you must have demanded
they must have demanded	I must have been demanding
you must have been demanding
she must have been demanding
we must have been demanding
you must have been demanding
they must have been demanding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't demand
you mustn't demand
she mustn't demand
we mustn't demand
you mustn't demand
they mustn't demand 	I mustn't be demanding
you mustn't be demanding
she mustn't be demanding
we mustn't be demanding
you mustn't be demanding
they mustn't be demanding	I mustn't have demanded
you mustn't have demanded
she mustn't have demanded
we mustn't have demanded
you mustn't have demanded
they mustn't have demanded	I mustn't have been demanding
you mustn't have been demanding
she mustn't have been demanding
we mustn't have been demanding
you mustn't have been demanding
they mustn't have been demanding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I demand?
must you demand?
must she demand?
must we demand?
must you demand?
must they demand? 	must I be demanding?
must you be demanding?
must she be demanding?
must we be demanding?
must you be demanding?
must they be demanding? 	must I have demanded?
must you have demanded?
must she have demanded?
must we have demanded?
must you have demanded?
must they have demanded? 	must I have been demanding?
must you have been demanding?
must she have been demanding?
must we have been demanding?
must you have been demanding?
must they have been demanding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I demand?
mustn't you demand?
mustn't she demand?
mustn't we demand?
mustn't you demand?
mustn't they demand? 	mustn't I be demanding?
mustn't you be demanding?
mustn't she be demanding?
mustn't we be demanding?
mustn't you be demanding?
mustn't they be demanding? 	mustn't I have demanded?
mustn't you have demanded?
mustn't she have demanded?
mustn't we have demanded?
mustn't you have demanded?
mustn't they have demanded? 	mustn't I have been demanding?
mustn't you have been demanding?
mustn't she have been demanding?
mustn't we have been demanding?
mustn't you have been demanding?
mustn't they have been demanding?