must euthanize
Regular verb: euthanize - euthanized- euthanized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must euthanize
you must euthanize
she must euthanize
we must euthanize
you must euthanize
they must euthanize 	I must be euthanizing
you must be euthanizing
she must be euthanizing
we must be euthanizing
you must be euthanizing
they must be euthanizing	I must have euthanized
you must have euthanized
she must have euthanized
we must have euthanized
you must have euthanized
they must have euthanized	I must have been euthanizing
you must have been euthanizing
she must have been euthanizing
we must have been euthanizing
you must have been euthanizing
they must have been euthanizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't euthanize
you mustn't euthanize
she mustn't euthanize
we mustn't euthanize
you mustn't euthanize
they mustn't euthanize 	I mustn't be euthanizing
you mustn't be euthanizing
she mustn't be euthanizing
we mustn't be euthanizing
you mustn't be euthanizing
they mustn't be euthanizing	I mustn't have euthanized
you mustn't have euthanized
she mustn't have euthanized
we mustn't have euthanized
you mustn't have euthanized
they mustn't have euthanized	I mustn't have been euthanizing
you mustn't have been euthanizing
she mustn't have been euthanizing
we mustn't have been euthanizing
you mustn't have been euthanizing
they mustn't have been euthanizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I euthanize?
must you euthanize?
must she euthanize?
must we euthanize?
must you euthanize?
must they euthanize? 	must I be euthanizing?
must you be euthanizing?
must she be euthanizing?
must we be euthanizing?
must you be euthanizing?
must they be euthanizing? 	must I have euthanized?
must you have euthanized?
must she have euthanized?
must we have euthanized?
must you have euthanized?
must they have euthanized? 	must I have been euthanizing?
must you have been euthanizing?
must she have been euthanizing?
must we have been euthanizing?
must you have been euthanizing?
must they have been euthanizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I euthanize?
mustn't you euthanize?
mustn't she euthanize?
mustn't we euthanize?
mustn't you euthanize?
mustn't they euthanize? 	mustn't I be euthanizing?
mustn't you be euthanizing?
mustn't she be euthanizing?
mustn't we be euthanizing?
mustn't you be euthanizing?
mustn't they be euthanizing? 	mustn't I have euthanized?
mustn't you have euthanized?
mustn't she have euthanized?
mustn't we have euthanized?
mustn't you have euthanized?
mustn't they have euthanized? 	mustn't I have been euthanizing?
mustn't you have been euthanizing?
mustn't she have been euthanizing?
mustn't we have been euthanizing?
mustn't you have been euthanizing?
mustn't they have been euthanizing?