I can flank you can flank she can flank we can flank you can flank they can flank
V-ing form
I can be flanking you can be flanking she can be flanking we can be flanking you can be flanking they can be flanking
Perfect
I can have flanked you can have flanked she can have flanked we can have flanked you can have flanked they can have flanked
V-ing perfect
I can have been flanking you can have been flanking she can have been flanking we can have been flanking you can have been flanking they can have been flanking
Negation
Simple form
I cannot flank you cannot flank she cannot flank we cannot flank you cannot flank they cannot flank
V-ing form
I cannot be flanking you cannot be flanking she cannot be flanking we cannot be flanking you cannot be flanking they cannot be flanking
Perfect
I cannot have flanked you cannot have flanked she cannot have flanked we cannot have flanked you cannot have flanked they cannot have flanked
V-ing perfect
I cannot have been flanking you cannot have been flanking she cannot have been flanking we cannot have been flanking you cannot have been flanking they cannot have been flanking
Interrogative form
Simple form
can I flank? can you flank? can she flank? can we flank? can you flank? can they flank?
V-ing form
can I be flanking? can you be flanking? can she be flanking? can we be flanking? can you be flanking? can they be flanking?
Perfect
can I have flanked? can you have flanked? can she have flanked? can we have flanked? can you have flanked? can they have flanked?
V-ing perfect
can I have been flanking? can you have been flanking? can she have been flanking? can we have been flanking? can you have been flanking? can they have been flanking?
Interro-negative form
Simple form
can I not flank? can you not flank? can she not flank? can we not flank? can you not flank? can they not flank?
V-ing form
can I not be flanking? can you not be flanking? can she not be flanking? can we not be flanking? can you not be flanking? can they not be flanking?
Perfect
can I not have flanked? can you not have flanked? can she not have flanked? can we not have flanked? can you not have flanked? can they not have flanked?
V-ing perfect
can I not have been flanking? can you not have been flanking? can she not have been flanking? can we not have been flanking? can you not have been flanking? can they not have been flanking?