I could stapedectomize you could stapedectomize she could stapedectomize we could stapedectomize you could stapedectomize they could stapedectomize
V-ing form
I could be stapedectomizing you could be stapedectomizing she could be stapedectomizing we could be stapedectomizing you could be stapedectomizing they could be stapedectomizing
Perfect
I could have stapedectomized you could have stapedectomized she could have stapedectomized we could have stapedectomized you could have stapedectomized they could have stapedectomized
V-ing perfect
I could have been stapedectomizing you could have been stapedectomizing she could have been stapedectomizing we could have been stapedectomizing you could have been stapedectomizing they could have been stapedectomizing
Negation
Simple form
I could not stapedectomize you could not stapedectomize she could not stapedectomize we could not stapedectomize you could not stapedectomize they could not stapedectomize
V-ing form
I could not be stapedectomizing you could not be stapedectomizing she could not be stapedectomizing we could not be stapedectomizing you could not be stapedectomizing they could not be stapedectomizing
Perfect
I could not have stapedectomized you could not have stapedectomized she could not have stapedectomized we could not have stapedectomized you could not have stapedectomized they could not have stapedectomized
V-ing perfect
I could not have been stapedectomizing you could not have been stapedectomizing she could not have been stapedectomizing we could not have been stapedectomizing you could not have been stapedectomizing they could not have been stapedectomizing
Interrogative form
Simple form
could I stapedectomize? could you stapedectomize? could she stapedectomize? could we stapedectomize? could you stapedectomize? could they stapedectomize?
V-ing form
could I be stapedectomizing? could you be stapedectomizing? could she be stapedectomizing? could we be stapedectomizing? could you be stapedectomizing? could they be stapedectomizing?
Perfect
could I have stapedectomized? could you have stapedectomized? could she have stapedectomized? could we have stapedectomized? could you have stapedectomized? could they have stapedectomized?
V-ing perfect
could I have been stapedectomizing? could you have been stapedectomizing? could she have been stapedectomizing? could we have been stapedectomizing? could you have been stapedectomizing? could they have been stapedectomizing?
Interro-negative form
Simple form
could I not stapedectomize? could you not stapedectomize? could she not stapedectomize? could we not stapedectomize? could you not stapedectomize? could they not stapedectomize?
V-ing form
could I not be stapedectomizing? could you not be stapedectomizing? could she not be stapedectomizing? could we not be stapedectomizing? could you not be stapedectomizing? could they not be stapedectomizing?
Perfect
could I not have stapedectomized? could you not have stapedectomized? could she not have stapedectomized? could we not have stapedectomized? could you not have stapedectomized? could they not have stapedectomized?
V-ing perfect
could I not have been stapedectomizing? could you not have been stapedectomizing? could she not have been stapedectomizing? could we not have been stapedectomizing? could you not have been stapedectomizing? could they not have been stapedectomizing?