I must bulwark you must bulwark she must bulwark we must bulwark you must bulwark they must bulwark
V-ing form
I must be bulwarking you must be bulwarking she must be bulwarking we must be bulwarking you must be bulwarking they must be bulwarking
Perfect
I must have bulwarked you must have bulwarked she must have bulwarked we must have bulwarked you must have bulwarked they must have bulwarked
V-ing perfect
I must have been bulwarking you must have been bulwarking she must have been bulwarking we must have been bulwarking you must have been bulwarking they must have been bulwarking
Negation
Simple form
I must not bulwark you must not bulwark she must not bulwark we must not bulwark you must not bulwark they must not bulwark
V-ing form
I must not be bulwarking you must not be bulwarking she must not be bulwarking we must not be bulwarking you must not be bulwarking they must not be bulwarking
Perfect
I must not have bulwarked you must not have bulwarked she must not have bulwarked we must not have bulwarked you must not have bulwarked they must not have bulwarked
V-ing perfect
I must not have been bulwarking you must not have been bulwarking she must not have been bulwarking we must not have been bulwarking you must not have been bulwarking they must not have been bulwarking
Interrogative form
Simple form
must I bulwark? must you bulwark? must she bulwark? must we bulwark? must you bulwark? must they bulwark?
V-ing form
must I be bulwarking? must you be bulwarking? must she be bulwarking? must we be bulwarking? must you be bulwarking? must they be bulwarking?
Perfect
must I have bulwarked? must you have bulwarked? must she have bulwarked? must we have bulwarked? must you have bulwarked? must they have bulwarked?
V-ing perfect
must I have been bulwarking? must you have been bulwarking? must she have been bulwarking? must we have been bulwarking? must you have been bulwarking? must they have been bulwarking?
Interro-negative form
Simple form
must I not bulwark? must you not bulwark? must she not bulwark? must we not bulwark? must you not bulwark? must they not bulwark?
V-ing form
must I not be bulwarking? must you not be bulwarking? must she not be bulwarking? must we not be bulwarking? must you not be bulwarking? must they not be bulwarking?
Perfect
must I not have bulwarked? must you not have bulwarked? must she not have bulwarked? must we not have bulwarked? must you not have bulwarked? must they not have bulwarked?
V-ing perfect
must I not have been bulwarking? must you not have been bulwarking? must she not have been bulwarking? must we not have been bulwarking? must you not have been bulwarking? must they not have been bulwarking?