I must bend you must bend she must bend we must bend you must bend they must bend
V-ing form
I must be bending you must be bending she must be bending we must be bending you must be bending they must be bending
Perfect
I must have bent you must have bent she must have bent we must have bent you must have bent they must have bent
V-ing perfect
I must have been bending you must have been bending she must have been bending we must have been bending you must have been bending they must have been bending
Negation
Simple form
I must not bend you must not bend she must not bend we must not bend you must not bend they must not bend
V-ing form
I must not be bending you must not be bending she must not be bending we must not be bending you must not be bending they must not be bending
Perfect
I must not have bent you must not have bent she must not have bent we must not have bent you must not have bent they must not have bent
V-ing perfect
I must not have been bending you must not have been bending she must not have been bending we must not have been bending you must not have been bending they must not have been bending
Interrogative form
Simple form
must I bend? must you bend? must she bend? must we bend? must you bend? must they bend?
V-ing form
must I be bending? must you be bending? must she be bending? must we be bending? must you be bending? must they be bending?
Perfect
must I have bent? must you have bent? must she have bent? must we have bent? must you have bent? must they have bent?
V-ing perfect
must I have been bending? must you have been bending? must she have been bending? must we have been bending? must you have been bending? must they have been bending?
Interro-negative form
Simple form
must I not bend? must you not bend? must she not bend? must we not bend? must you not bend? must they not bend?
V-ing form
must I not be bending? must you not be bending? must she not be bending? must we not be bending? must you not be bending? must they not be bending?
Perfect
must I not have bent? must you not have bent? must she not have bent? must we not have bent? must you not have bent? must they not have bent?
V-ing perfect
must I not have been bending? must you not have been bending? must she not have been bending? must we not have been bending? must you not have been bending? must they not have been bending?