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