I could bisect you could bisect he could bisect we could bisect you could bisect they could bisect
V-ing form
I could be bisecting you could be bisecting he could be bisecting we could be bisecting you could be bisecting they could be bisecting
Perfect
I could have bisected you could have bisected he could have bisected we could have bisected you could have bisected they could have bisected
V-ing perfect
I could have been bisecting you could have been bisecting he could have been bisecting we could have been bisecting you could have been bisecting they could have been bisecting
Negation
Simple form
I couldn't bisect you couldn't bisect he couldn't bisect we couldn't bisect you couldn't bisect they couldn't bisect
V-ing form
I couldn't be bisecting you couldn't be bisecting he couldn't be bisecting we couldn't be bisecting you couldn't be bisecting they couldn't be bisecting
Perfect
I couldn't have bisected you couldn't have bisected he couldn't have bisected we couldn't have bisected you couldn't have bisected they couldn't have bisected
V-ing perfect
I couldn't have been bisecting you couldn't have been bisecting he couldn't have been bisecting we couldn't have been bisecting you couldn't have been bisecting they couldn't have been bisecting
Interrogative form
Simple form
could I bisect? could you bisect? could he bisect? could we bisect? could you bisect? could they bisect?
V-ing form
could I be bisecting? could you be bisecting? could he be bisecting? could we be bisecting? could you be bisecting? could they be bisecting?
Perfect
could I have bisected? could you have bisected? could he have bisected? could we have bisected? could you have bisected? could they have bisected?
V-ing perfect
could I have been bisecting? could you have been bisecting? could he have been bisecting? could we have been bisecting? could you have been bisecting? could they have been bisecting?
Interro-negative form
Simple form
couldn't I bisect? couldn't you bisect? couldn't he bisect? couldn't we bisect? couldn't you bisect? couldn't they bisect?
V-ing form
couldn't I be bisecting? couldn't you be bisecting? couldn't he be bisecting? couldn't we be bisecting? couldn't you be bisecting? couldn't they be bisecting?
Perfect
couldn't I have bisected? couldn't you have bisected? couldn't he have bisected? couldn't we have bisected? couldn't you have bisected? couldn't they have bisected?
V-ing perfect
couldn't I have been bisecting? couldn't you have been bisecting? couldn't he have been bisecting? couldn't we have been bisecting? couldn't you have been bisecting? couldn't they have been bisecting?