must superimpose
Regular verb: superimpose - superimposed- superimposed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must superimpose
you must superimpose
he must superimpose
we must superimpose
you must superimpose
they must superimpose 	I must be superimposing
you must be superimposing
he must be superimposing
we must be superimposing
you must be superimposing
they must be superimposing	I must have superimposed
you must have superimposed
he must have superimposed
we must have superimposed
you must have superimposed
they must have superimposed	I must have been superimposing
you must have been superimposing
he must have been superimposing
we must have been superimposing
you must have been superimposing
they must have been superimposing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not superimpose
you must not superimpose
he must not superimpose
we must not superimpose
you must not superimpose
they must not superimpose 	I must not be superimposing
you must not be superimposing
he must not be superimposing
we must not be superimposing
you must not be superimposing
they must not be superimposing	I must not have superimposed
you must not have superimposed
he must not have superimposed
we must not have superimposed
you must not have superimposed
they must not have superimposed	I must not have been superimposing
you must not have been superimposing
he must not have been superimposing
we must not have been superimposing
you must not have been superimposing
they must not have been superimposing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I superimpose?
must you superimpose?
must he superimpose?
must we superimpose?
must you superimpose?
must they superimpose? 	must I be superimposing?
must you be superimposing?
must he be superimposing?
must we be superimposing?
must you be superimposing?
must they be superimposing? 	must I have superimposed?
must you have superimposed?
must he have superimposed?
must we have superimposed?
must you have superimposed?
must they have superimposed? 	must I have been superimposing?
must you have been superimposing?
must he have been superimposing?
must we have been superimposing?
must you have been superimposing?
must they have been superimposing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not superimpose?
must you not superimpose?
must he not superimpose?
must we not superimpose?
must you not superimpose?
must they not superimpose? 	must I not be superimposing?
must you not be superimposing?
must he not be superimposing?
must we not be superimposing?
must you not be superimposing?
must they not be superimposing? 	must I not have superimposed?
must you not have superimposed?
must he not have superimposed?
must we not have superimposed?
must you not have superimposed?
must they not have superimposed? 	must I not have been superimposing?
must you not have been superimposing?
must he not have been superimposing?
must we not have been superimposing?
must you not have been superimposing?
must they not have been superimposing?