I can bork you can bork she can bork we can bork you can bork they can bork
V-ing form
I can be borking you can be borking she can be borking we can be borking you can be borking they can be borking
Perfect
I can have borked you can have borked she can have borked we can have borked you can have borked they can have borked
V-ing perfect
I can have been borking you can have been borking she can have been borking we can have been borking you can have been borking they can have been borking
Negation
Simple form
I cannot bork you cannot bork she cannot bork we cannot bork you cannot bork they cannot bork
V-ing form
I cannot be borking you cannot be borking she cannot be borking we cannot be borking you cannot be borking they cannot be borking
Perfect
I cannot have borked you cannot have borked she cannot have borked we cannot have borked you cannot have borked they cannot have borked
V-ing perfect
I cannot have been borking you cannot have been borking she cannot have been borking we cannot have been borking you cannot have been borking they cannot have been borking
Interrogative form
Simple form
can I bork? can you bork? can she bork? can we bork? can you bork? can they bork?
V-ing form
can I be borking? can you be borking? can she be borking? can we be borking? can you be borking? can they be borking?
Perfect
can I have borked? can you have borked? can she have borked? can we have borked? can you have borked? can they have borked?
V-ing perfect
can I have been borking? can you have been borking? can she have been borking? can we have been borking? can you have been borking? can they have been borking?
Interro-negative form
Simple form
can I not bork? can you not bork? can she not bork? can we not bork? can you not bork? can they not bork?
V-ing form
can I not be borking? can you not be borking? can she not be borking? can we not be borking? can you not be borking? can they not be borking?
Perfect
can I not have borked? can you not have borked? can she not have borked? can we not have borked? can you not have borked? can they not have borked?
V-ing perfect
can I not have been borking? can you not have been borking? can she not have been borking? can we not have been borking? can you not have been borking? can they not have been borking?