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 couldn't stapedectomize you couldn't stapedectomize she couldn't stapedectomize we couldn't stapedectomize you couldn't stapedectomize they couldn't stapedectomize
V-ing form
I couldn't be stapedectomizing you couldn't be stapedectomizing she couldn't be stapedectomizing we couldn't be stapedectomizing you couldn't be stapedectomizing they couldn't be stapedectomizing
Perfect
I couldn't have stapedectomized you couldn't have stapedectomized she couldn't have stapedectomized we couldn't have stapedectomized you couldn't have stapedectomized they couldn't have stapedectomized
V-ing perfect
I couldn't have been stapedectomizing you couldn't have been stapedectomizing she couldn't have been stapedectomizing we couldn't have been stapedectomizing you couldn't have been stapedectomizing they couldn't 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
couldn't I stapedectomize? couldn't you stapedectomize? couldn't she stapedectomize? couldn't we stapedectomize? couldn't you stapedectomize? couldn't they stapedectomize?
V-ing form
couldn't I be stapedectomizing? couldn't you be stapedectomizing? couldn't she be stapedectomizing? couldn't we be stapedectomizing? couldn't you be stapedectomizing? couldn't they be stapedectomizing?
Perfect
couldn't I have stapedectomized? couldn't you have stapedectomized? couldn't she have stapedectomized? couldn't we have stapedectomized? couldn't you have stapedectomized? couldn't they have stapedectomized?
V-ing perfect
couldn't I have been stapedectomizing? couldn't you have been stapedectomizing? couldn't she have been stapedectomizing? couldn't we have been stapedectomizing? couldn't you have been stapedectomizing? couldn't they have been stapedectomizing?