I could warrant you could warrant he could warrant we could warrant you could warrant they could warrant
V-ing form
I could be warranting you could be warranting he could be warranting we could be warranting you could be warranting they could be warranting
Perfect
I could have warranted you could have warranted he could have warranted we could have warranted you could have warranted they could have warranted
V-ing perfect
I could have been warranting you could have been warranting he could have been warranting we could have been warranting you could have been warranting they could have been warranting
Negation
Simple form
I could not warrant you could not warrant he could not warrant we could not warrant you could not warrant they could not warrant
V-ing form
I could not be warranting you could not be warranting he could not be warranting we could not be warranting you could not be warranting they could not be warranting
Perfect
I could not have warranted you could not have warranted he could not have warranted we could not have warranted you could not have warranted they could not have warranted
V-ing perfect
I could not have been warranting you could not have been warranting he could not have been warranting we could not have been warranting you could not have been warranting they could not have been warranting
Interrogative form
Simple form
could I warrant? could you warrant? could he warrant? could we warrant? could you warrant? could they warrant?
V-ing form
could I be warranting? could you be warranting? could he be warranting? could we be warranting? could you be warranting? could they be warranting?
Perfect
could I have warranted? could you have warranted? could he have warranted? could we have warranted? could you have warranted? could they have warranted?
V-ing perfect
could I have been warranting? could you have been warranting? could he have been warranting? could we have been warranting? could you have been warranting? could they have been warranting?
Interro-negative form
Simple form
could I not warrant? could you not warrant? could he not warrant? could we not warrant? could you not warrant? could they not warrant?
V-ing form
could I not be warranting? could you not be warranting? could he not be warranting? could we not be warranting? could you not be warranting? could they not be warranting?
Perfect
could I not have warranted? could you not have warranted? could he not have warranted? could we not have warranted? could you not have warranted? could they not have warranted?
V-ing perfect
could I not have been warranting? could you not have been warranting? could he not have been warranting? could we not have been warranting? could you not have been warranting? could they not have been warranting?