I must hang you must hang she must hang we must hang you must hang they must hang
V-ing form
I must be hanging you must be hanging she must be hanging we must be hanging you must be hanging they must be hanging
Perfect
I must have hung you must have hung she must have hung we must have hung you must have hung they must have hung
V-ing perfect
I must have been hanging you must have been hanging she must have been hanging we must have been hanging you must have been hanging they must have been hanging
Negation
Simple form
I mustn't hang you mustn't hang she mustn't hang we mustn't hang you mustn't hang they mustn't hang
V-ing form
I mustn't be hanging you mustn't be hanging she mustn't be hanging we mustn't be hanging you mustn't be hanging they mustn't be hanging
Perfect
I mustn't have hung you mustn't have hung she mustn't have hung we mustn't have hung you mustn't have hung they mustn't have hung
V-ing perfect
I mustn't have been hanging you mustn't have been hanging she mustn't have been hanging we mustn't have been hanging you mustn't have been hanging they mustn't have been hanging
Interrogative form
Simple form
must I hang? must you hang? must she hang? must we hang? must you hang? must they hang?
V-ing form
must I be hanging? must you be hanging? must she be hanging? must we be hanging? must you be hanging? must they be hanging?
Perfect
must I have hung? must you have hung? must she have hung? must we have hung? must you have hung? must they have hung?
V-ing perfect
must I have been hanging? must you have been hanging? must she have been hanging? must we have been hanging? must you have been hanging? must they have been hanging?
Interro-negative form
Simple form
mustn't I hang? mustn't you hang? mustn't she hang? mustn't we hang? mustn't you hang? mustn't they hang?
V-ing form
mustn't I be hanging? mustn't you be hanging? mustn't she be hanging? mustn't we be hanging? mustn't you be hanging? mustn't they be hanging?
Perfect
mustn't I have hung? mustn't you have hung? mustn't she have hung? mustn't we have hung? mustn't you have hung? mustn't they have hung?
V-ing perfect
mustn't I have been hanging? mustn't you have been hanging? mustn't she have been hanging? mustn't we have been hanging? mustn't you have been hanging? mustn't they have been hanging?