must splice
Regular verb: splice - spliced- spliced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must splice
you must splice
he must splice
we must splice
you must splice
they must splice 	I must be splicing
you must be splicing
he must be splicing
we must be splicing
you must be splicing
they must be splicing	I must have spliced
you must have spliced
he must have spliced
we must have spliced
you must have spliced
they must have spliced	I must have been splicing
you must have been splicing
he must have been splicing
we must have been splicing
you must have been splicing
they must have been splicing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't splice
you mustn't splice
he mustn't splice
we mustn't splice
you mustn't splice
they mustn't splice 	I mustn't be splicing
you mustn't be splicing
he mustn't be splicing
we mustn't be splicing
you mustn't be splicing
they mustn't be splicing	I mustn't have spliced
you mustn't have spliced
he mustn't have spliced
we mustn't have spliced
you mustn't have spliced
they mustn't have spliced	I mustn't have been splicing
you mustn't have been splicing
he mustn't have been splicing
we mustn't have been splicing
you mustn't have been splicing
they mustn't have been splicing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I splice?
must you splice?
must he splice?
must we splice?
must you splice?
must they splice? 	must I be splicing?
must you be splicing?
must he be splicing?
must we be splicing?
must you be splicing?
must they be splicing? 	must I have spliced?
must you have spliced?
must he have spliced?
must we have spliced?
must you have spliced?
must they have spliced? 	must I have been splicing?
must you have been splicing?
must he have been splicing?
must we have been splicing?
must you have been splicing?
must they have been splicing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I splice?
mustn't you splice?
mustn't he splice?
mustn't we splice?
mustn't you splice?
mustn't they splice? 	mustn't I be splicing?
mustn't you be splicing?
mustn't he be splicing?
mustn't we be splicing?
mustn't you be splicing?
mustn't they be splicing? 	mustn't I have spliced?
mustn't you have spliced?
mustn't he have spliced?
mustn't we have spliced?
mustn't you have spliced?
mustn't they have spliced? 	mustn't I have been splicing?
mustn't you have been splicing?
mustn't he have been splicing?
mustn't we have been splicing?
mustn't you have been splicing?
mustn't they have been splicing?