must metamorphose
Regular verb: metamorphose - metamorphosed- metamorphosed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must metamorphose
you must metamorphose
he must metamorphose
we must metamorphose
you must metamorphose
they must metamorphose 	I must be metamorphosing
you must be metamorphosing
he must be metamorphosing
we must be metamorphosing
you must be metamorphosing
they must be metamorphosing	I must have metamorphosed
you must have metamorphosed
he must have metamorphosed
we must have metamorphosed
you must have metamorphosed
they must have metamorphosed	I must have been metamorphosing
you must have been metamorphosing
he must have been metamorphosing
we must have been metamorphosing
you must have been metamorphosing
they must have been metamorphosing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't metamorphose
you mustn't metamorphose
he mustn't metamorphose
we mustn't metamorphose
you mustn't metamorphose
they mustn't metamorphose 	I mustn't be metamorphosing
you mustn't be metamorphosing
he mustn't be metamorphosing
we mustn't be metamorphosing
you mustn't be metamorphosing
they mustn't be metamorphosing	I mustn't have metamorphosed
you mustn't have metamorphosed
he mustn't have metamorphosed
we mustn't have metamorphosed
you mustn't have metamorphosed
they mustn't have metamorphosed	I mustn't have been metamorphosing
you mustn't have been metamorphosing
he mustn't have been metamorphosing
we mustn't have been metamorphosing
you mustn't have been metamorphosing
they mustn't have been metamorphosing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I metamorphose?
must you metamorphose?
must he metamorphose?
must we metamorphose?
must you metamorphose?
must they metamorphose? 	must I be metamorphosing?
must you be metamorphosing?
must he be metamorphosing?
must we be metamorphosing?
must you be metamorphosing?
must they be metamorphosing? 	must I have metamorphosed?
must you have metamorphosed?
must he have metamorphosed?
must we have metamorphosed?
must you have metamorphosed?
must they have metamorphosed? 	must I have been metamorphosing?
must you have been metamorphosing?
must he have been metamorphosing?
must we have been metamorphosing?
must you have been metamorphosing?
must they have been metamorphosing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I metamorphose?
mustn't you metamorphose?
mustn't he metamorphose?
mustn't we metamorphose?
mustn't you metamorphose?
mustn't they metamorphose? 	mustn't I be metamorphosing?
mustn't you be metamorphosing?
mustn't he be metamorphosing?
mustn't we be metamorphosing?
mustn't you be metamorphosing?
mustn't they be metamorphosing? 	mustn't I have metamorphosed?
mustn't you have metamorphosed?
mustn't he have metamorphosed?
mustn't we have metamorphosed?
mustn't you have metamorphosed?
mustn't they have metamorphosed? 	mustn't I have been metamorphosing?
mustn't you have been metamorphosing?
mustn't he have been metamorphosing?
mustn't we have been metamorphosing?
mustn't you have been metamorphosing?
mustn't they have been metamorphosing?