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 must not disestablish you must not disestablish he must not disestablish we must not disestablish you must not disestablish they must not disestablish
V-ing form
I must not be disestablishing you must not be disestablishing he must not be disestablishing we must not be disestablishing you must not be disestablishing they must not be disestablishing
Perfect
I must not have disestablished you must not have disestablished he must not have disestablished we must not have disestablished you must not have disestablished they must not have disestablished
V-ing perfect
I must not have been disestablishing you must not have been disestablishing he must not have been disestablishing we must not have been disestablishing you must not have been disestablishing they must not 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
must I not disestablish? must you not disestablish? must he not disestablish? must we not disestablish? must you not disestablish? must they not disestablish?
V-ing form
must I not be disestablishing? must you not be disestablishing? must he not be disestablishing? must we not be disestablishing? must you not be disestablishing? must they not be disestablishing?
Perfect
must I not have disestablished? must you not have disestablished? must he not have disestablished? must we not have disestablished? must you not have disestablished? must they not have disestablished?
V-ing perfect
must I not have been disestablishing? must you not have been disestablishing? must he not have been disestablishing? must we not have been disestablishing? must you not have been disestablishing? must they not have been disestablishing?