I could euthanize you could euthanize she could euthanize we could euthanize you could euthanize they could euthanize
V-ing form
I could be euthanizing you could be euthanizing she could be euthanizing we could be euthanizing you could be euthanizing they could be euthanizing
Perfect
I could have euthanized you could have euthanized she could have euthanized we could have euthanized you could have euthanized they could have euthanized
V-ing perfect
I could have been euthanizing you could have been euthanizing she could have been euthanizing we could have been euthanizing you could have been euthanizing they could have been euthanizing
Negation
Simple form
I could not euthanize you could not euthanize she could not euthanize we could not euthanize you could not euthanize they could not euthanize
V-ing form
I could not be euthanizing you could not be euthanizing she could not be euthanizing we could not be euthanizing you could not be euthanizing they could not be euthanizing
Perfect
I could not have euthanized you could not have euthanized she could not have euthanized we could not have euthanized you could not have euthanized they could not have euthanized
V-ing perfect
I could not have been euthanizing you could not have been euthanizing she could not have been euthanizing we could not have been euthanizing you could not have been euthanizing they could not have been euthanizing
Interrogative form
Simple form
could I euthanize? could you euthanize? could she euthanize? could we euthanize? could you euthanize? could they euthanize?
V-ing form
could I be euthanizing? could you be euthanizing? could she be euthanizing? could we be euthanizing? could you be euthanizing? could they be euthanizing?
Perfect
could I have euthanized? could you have euthanized? could she have euthanized? could we have euthanized? could you have euthanized? could they have euthanized?
V-ing perfect
could I have been euthanizing? could you have been euthanizing? could she have been euthanizing? could we have been euthanizing? could you have been euthanizing? could they have been euthanizing?
Interro-negative form
Simple form
could I not euthanize? could you not euthanize? could she not euthanize? could we not euthanize? could you not euthanize? could they not euthanize?
V-ing form
could I not be euthanizing? could you not be euthanizing? could she not be euthanizing? could we not be euthanizing? could you not be euthanizing? could they not be euthanizing?
Perfect
could I not have euthanized? could you not have euthanized? could she not have euthanized? could we not have euthanized? could you not have euthanized? could they not have euthanized?
V-ing perfect
could I not have been euthanizing? could you not have been euthanizing? could she not have been euthanizing? could we not have been euthanizing? could you not have been euthanizing? could they not have been euthanizing?