I must organize you must organize he must organize we must organize you must organize they must organize
V-ing form
I must be organizing you must be organizing he must be organizing we must be organizing you must be organizing they must be organizing
Perfect
I must have organized you must have organized he must have organized we must have organized you must have organized they must have organized
V-ing perfect
I must have been organizing you must have been organizing he must have been organizing we must have been organizing you must have been organizing they must have been organizing
Negation
Simple form
I must not organize you must not organize he must not organize we must not organize you must not organize they must not organize
V-ing form
I must not be organizing you must not be organizing he must not be organizing we must not be organizing you must not be organizing they must not be organizing
Perfect
I must not have organized you must not have organized he must not have organized we must not have organized you must not have organized they must not have organized
V-ing perfect
I must not have been organizing you must not have been organizing he must not have been organizing we must not have been organizing you must not have been organizing they must not have been organizing
Interrogative form
Simple form
must I organize? must you organize? must he organize? must we organize? must you organize? must they organize?
V-ing form
must I be organizing? must you be organizing? must he be organizing? must we be organizing? must you be organizing? must they be organizing?
Perfect
must I have organized? must you have organized? must he have organized? must we have organized? must you have organized? must they have organized?
V-ing perfect
must I have been organizing? must you have been organizing? must he have been organizing? must we have been organizing? must you have been organizing? must they have been organizing?
Interro-negative form
Simple form
must I not organize? must you not organize? must he not organize? must we not organize? must you not organize? must they not organize?
V-ing form
must I not be organizing? must you not be organizing? must he not be organizing? must we not be organizing? must you not be organizing? must they not be organizing?
Perfect
must I not have organized? must you not have organized? must he not have organized? must we not have organized? must you not have organized? must they not have organized?
V-ing perfect
must I not have been organizing? must you not have been organizing? must he not have been organizing? must we not have been organizing? must you not have been organizing? must they not have been organizing?