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