I must disestablish you must disestablish he must disestablish we must disestablish you must disestablish they must disestablish
V-ing form
I must be disestablishing you must be disestablishing he must be disestablishing we must be disestablishing you must be disestablishing they must be disestablishing
Perfect
I must have disestablished you must have disestablished he must have disestablished we must have disestablished you must have disestablished they must have disestablished
V-ing perfect
I must have been disestablishing you must have been disestablishing he must have been disestablishing we must have been disestablishing you must have been disestablishing they must have been disestablishing
Negation
Simple form
I mustn't disestablish you mustn't disestablish he mustn't disestablish we mustn't disestablish you mustn't disestablish they mustn't disestablish
V-ing form
I mustn't be disestablishing you mustn't be disestablishing he mustn't be disestablishing we mustn't be disestablishing you mustn't be disestablishing they mustn't be disestablishing
Perfect
I mustn't have disestablished you mustn't have disestablished he mustn't have disestablished we mustn't have disestablished you mustn't have disestablished they mustn't have disestablished
V-ing perfect
I mustn't have been disestablishing you mustn't have been disestablishing he mustn't have been disestablishing we mustn't have been disestablishing you mustn't have been disestablishing they mustn't have been disestablishing
Interrogative form
Simple form
must I disestablish? must you disestablish? must he disestablish? must we disestablish? must you disestablish? must they disestablish?
V-ing form
must I be disestablishing? must you be disestablishing? must he be disestablishing? must we be disestablishing? must you be disestablishing? must they be disestablishing?
Perfect
must I have disestablished? must you have disestablished? must he have disestablished? must we have disestablished? must you have disestablished? must they have disestablished?
V-ing perfect
must I have been disestablishing? must you have been disestablishing? must he have been disestablishing? must we have been disestablishing? must you have been disestablishing? must they have been disestablishing?
Interro-negative form
Simple form
mustn't I disestablish? mustn't you disestablish? mustn't he disestablish? mustn't we disestablish? mustn't you disestablish? mustn't they disestablish?
V-ing form
mustn't I be disestablishing? mustn't you be disestablishing? mustn't he be disestablishing? mustn't we be disestablishing? mustn't you be disestablishing? mustn't they be disestablishing?
Perfect
mustn't I have disestablished? mustn't you have disestablished? mustn't he have disestablished? mustn't we have disestablished? mustn't you have disestablished? mustn't they have disestablished?
V-ing perfect
mustn't I have been disestablishing? mustn't you have been disestablishing? mustn't he have been disestablishing? mustn't we have been disestablishing? mustn't you have been disestablishing? mustn't they have been disestablishing?