I could interhybridize you could interhybridize he could interhybridize we could interhybridize you could interhybridize they could interhybridize
V-ing form
I could be interhybridizing you could be interhybridizing he could be interhybridizing we could be interhybridizing you could be interhybridizing they could be interhybridizing
Perfect
I could have interhybridized you could have interhybridized he 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 he 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 he 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 he 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 he 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 he 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 he interhybridize? could we interhybridize? could you interhybridize? could they interhybridize?
V-ing form
could I be interhybridizing? could you be interhybridizing? could he be interhybridizing? could we be interhybridizing? could you be interhybridizing? could they be interhybridizing?
Perfect
could I have interhybridized? could you have interhybridized? could he 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 he 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 he 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 he 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 he 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 he have been interhybridizing? couldn't we have been interhybridizing? couldn't you have been interhybridizing? couldn't they have been interhybridizing?