Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must rub shoulders you must rub shoulders he must rub shoulders we must rub shoulders you must rub shoulders they must rub shoulders
V-ing form
I must be rub shouldersing you must be rub shouldersing he must be rub shouldersing we must be rub shouldersing you must be rub shouldersing they must be rub shouldersing
Perfect
I must have rub shouldersed you must have rub shouldersed he must have rub shouldersed we must have rub shouldersed you must have rub shouldersed they must have rub shouldersed
V-ing perfect
I must have been rub shouldersing you must have been rub shouldersing he must have been rub shouldersing we must have been rub shouldersing you must have been rub shouldersing they must have been rub shouldersing
Negation
Simple form
I mustn't rub shoulders you mustn't rub shoulders he mustn't rub shoulders we mustn't rub shoulders you mustn't rub shoulders they mustn't rub shoulders
V-ing form
I mustn't be rub shouldersing you mustn't be rub shouldersing he mustn't be rub shouldersing we mustn't be rub shouldersing you mustn't be rub shouldersing they mustn't be rub shouldersing
Perfect
I mustn't have rub shouldersed you mustn't have rub shouldersed he mustn't have rub shouldersed we mustn't have rub shouldersed you mustn't have rub shouldersed they mustn't have rub shouldersed
V-ing perfect
I mustn't have been rub shouldersing you mustn't have been rub shouldersing he mustn't have been rub shouldersing we mustn't have been rub shouldersing you mustn't have been rub shouldersing they mustn't have been rub shouldersing
Interrogative form
Simple form
must I rub shoulders? must you rub shoulders? must he rub shoulders? must we rub shoulders? must you rub shoulders? must they rub shoulders?
V-ing form
must I be rub shouldersing? must you be rub shouldersing? must he be rub shouldersing? must we be rub shouldersing? must you be rub shouldersing? must they be rub shouldersing?
Perfect
must I have rub shouldersed? must you have rub shouldersed? must he have rub shouldersed? must we have rub shouldersed? must you have rub shouldersed? must they have rub shouldersed?
V-ing perfect
must I have been rub shouldersing? must you have been rub shouldersing? must he have been rub shouldersing? must we have been rub shouldersing? must you have been rub shouldersing? must they have been rub shouldersing?
Interro-negative form
Simple form
mustn't I rub shoulders? mustn't you rub shoulders? mustn't he rub shoulders? mustn't we rub shoulders? mustn't you rub shoulders? mustn't they rub shoulders?
V-ing form
mustn't I be rub shouldersing? mustn't you be rub shouldersing? mustn't he be rub shouldersing? mustn't we be rub shouldersing? mustn't you be rub shouldersing? mustn't they be rub shouldersing?
Perfect
mustn't I have rub shouldersed? mustn't you have rub shouldersed? mustn't he have rub shouldersed? mustn't we have rub shouldersed? mustn't you have rub shouldersed? mustn't they have rub shouldersed?
V-ing perfect
mustn't I have been rub shouldersing? mustn't you have been rub shouldersing? mustn't he have been rub shouldersing? mustn't we have been rub shouldersing? mustn't you have been rub shouldersing? mustn't they have been rub shouldersing?