must superheat
Regular verb: superheat - superheated- superheated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must superheat
you must superheat
he must superheat
we must superheat
you must superheat
they must superheat 	I must be superheating
you must be superheating
he must be superheating
we must be superheating
you must be superheating
they must be superheating	I must have superheated
you must have superheated
he must have superheated
we must have superheated
you must have superheated
they must have superheated	I must have been superheating
you must have been superheating
he must have been superheating
we must have been superheating
you must have been superheating
they must have been superheating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't superheat
you mustn't superheat
he mustn't superheat
we mustn't superheat
you mustn't superheat
they mustn't superheat 	I mustn't be superheating
you mustn't be superheating
he mustn't be superheating
we mustn't be superheating
you mustn't be superheating
they mustn't be superheating	I mustn't have superheated
you mustn't have superheated
he mustn't have superheated
we mustn't have superheated
you mustn't have superheated
they mustn't have superheated	I mustn't have been superheating
you mustn't have been superheating
he mustn't have been superheating
we mustn't have been superheating
you mustn't have been superheating
they mustn't have been superheating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I superheat?
must you superheat?
must he superheat?
must we superheat?
must you superheat?
must they superheat? 	must I be superheating?
must you be superheating?
must he be superheating?
must we be superheating?
must you be superheating?
must they be superheating? 	must I have superheated?
must you have superheated?
must he have superheated?
must we have superheated?
must you have superheated?
must they have superheated? 	must I have been superheating?
must you have been superheating?
must he have been superheating?
must we have been superheating?
must you have been superheating?
must they have been superheating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I superheat?
mustn't you superheat?
mustn't he superheat?
mustn't we superheat?
mustn't you superheat?
mustn't they superheat? 	mustn't I be superheating?
mustn't you be superheating?
mustn't he be superheating?
mustn't we be superheating?
mustn't you be superheating?
mustn't they be superheating? 	mustn't I have superheated?
mustn't you have superheated?
mustn't he have superheated?
mustn't we have superheated?
mustn't you have superheated?
mustn't they have superheated? 	mustn't I have been superheating?
mustn't you have been superheating?
mustn't he have been superheating?
mustn't we have been superheating?
mustn't you have been superheating?
mustn't they have been superheating?