I could interhybridize you could interhybridize she could interhybridize we could interhybridize you could interhybridize they could interhybridize
V-ing form
I could be interhybridizing you could be interhybridizing she could be interhybridizing we could be interhybridizing you could be interhybridizing they could be interhybridizing
Perfect
I could have interhybridized you could have interhybridized she could have interhybridized we could have interhybridized you could have interhybridized they could have interhybridized
V-ing perfect
I could have been interhybridizing you could have been interhybridizing she could have been interhybridizing we could have been interhybridizing you could have been interhybridizing they could have been interhybridizing
Negation
Simple form
I couldn't interhybridize you couldn't interhybridize she couldn't interhybridize we couldn't interhybridize you couldn't interhybridize they couldn't interhybridize
V-ing form
I couldn't be interhybridizing you couldn't be interhybridizing she couldn't be interhybridizing we couldn't be interhybridizing you couldn't be interhybridizing they couldn't be interhybridizing
Perfect
I couldn't have interhybridized you couldn't have interhybridized she couldn't have interhybridized we couldn't have interhybridized you couldn't have interhybridized they couldn't have interhybridized
V-ing perfect
I couldn't have been interhybridizing you couldn't have been interhybridizing she couldn't have been interhybridizing we couldn't have been interhybridizing you couldn't have been interhybridizing they couldn't have been interhybridizing
Interrogative form
Simple form
could I interhybridize? could you interhybridize? could she interhybridize? could we interhybridize? could you interhybridize? could they interhybridize?
V-ing form
could I be interhybridizing? could you be interhybridizing? could she be interhybridizing? could we be interhybridizing? could you be interhybridizing? could they be interhybridizing?
Perfect
could I have interhybridized? could you have interhybridized? could she have interhybridized? could we have interhybridized? could you have interhybridized? could they have interhybridized?
V-ing perfect
could I have been interhybridizing? could you have been interhybridizing? could she have been interhybridizing? could we have been interhybridizing? could you have been interhybridizing? could they have been interhybridizing?
Interro-negative form
Simple form
couldn't I interhybridize? couldn't you interhybridize? couldn't she interhybridize? couldn't we interhybridize? couldn't you interhybridize? couldn't they interhybridize?
V-ing form
couldn't I be interhybridizing? couldn't you be interhybridizing? couldn't she be interhybridizing? couldn't we be interhybridizing? couldn't you be interhybridizing? couldn't they be interhybridizing?
Perfect
couldn't I have interhybridized? couldn't you have interhybridized? couldn't she have interhybridized? couldn't we have interhybridized? couldn't you have interhybridized? couldn't they have interhybridized?
V-ing perfect
couldn't I have been interhybridizing? couldn't you have been interhybridizing? couldn't she have been interhybridizing? couldn't we have been interhybridizing? couldn't you have been interhybridizing? couldn't they have been interhybridizing?