must gyve
Regular verb: gyve - gyved- gyved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must gyve
you must gyve
he must gyve
we must gyve
you must gyve
they must gyve 	I must be gyving
you must be gyving
he must be gyving
we must be gyving
you must be gyving
they must be gyving	I must have gyved
you must have gyved
he must have gyved
we must have gyved
you must have gyved
they must have gyved	I must have been gyving
you must have been gyving
he must have been gyving
we must have been gyving
you must have been gyving
they must have been gyving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't gyve
you mustn't gyve
he mustn't gyve
we mustn't gyve
you mustn't gyve
they mustn't gyve 	I mustn't be gyving
you mustn't be gyving
he mustn't be gyving
we mustn't be gyving
you mustn't be gyving
they mustn't be gyving	I mustn't have gyved
you mustn't have gyved
he mustn't have gyved
we mustn't have gyved
you mustn't have gyved
they mustn't have gyved	I mustn't have been gyving
you mustn't have been gyving
he mustn't have been gyving
we mustn't have been gyving
you mustn't have been gyving
they mustn't have been gyving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I gyve?
must you gyve?
must he gyve?
must we gyve?
must you gyve?
must they gyve? 	must I be gyving?
must you be gyving?
must he be gyving?
must we be gyving?
must you be gyving?
must they be gyving? 	must I have gyved?
must you have gyved?
must he have gyved?
must we have gyved?
must you have gyved?
must they have gyved? 	must I have been gyving?
must you have been gyving?
must he have been gyving?
must we have been gyving?
must you have been gyving?
must they have been gyving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I gyve?
mustn't you gyve?
mustn't he gyve?
mustn't we gyve?
mustn't you gyve?
mustn't they gyve? 	mustn't I be gyving?
mustn't you be gyving?
mustn't he be gyving?
mustn't we be gyving?
mustn't you be gyving?
mustn't they be gyving? 	mustn't I have gyved?
mustn't you have gyved?
mustn't he have gyved?
mustn't we have gyved?
mustn't you have gyved?
mustn't they have gyved? 	mustn't I have been gyving?
mustn't you have been gyving?
mustn't he have been gyving?
mustn't we have been gyving?
mustn't you have been gyving?
mustn't they have been gyving?