I must hang you must hang he must hang we must hang you must hang they must hang
V-ing form
I must be hanging you must be hanging he must be hanging we must be hanging you must be hanging they must be hanging
Perfect
I must have hung you must have hung he 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 he 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 he 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 he 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 he 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 he 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 he hang? must we hang? must you hang? must they hang?
V-ing form
must I be hanging? must you be hanging? must he be hanging? must we be hanging? must you be hanging? must they be hanging?
Perfect
must I have hung? must you have hung? must he 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 he 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 he 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 he 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 he 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 he have been hanging? mustn't we have been hanging? mustn't you have been hanging? mustn't they have been hanging?