I must voyage you must voyage he must voyage we must voyage you must voyage they must voyage
V-ing form
I must be voyaging you must be voyaging he must be voyaging we must be voyaging you must be voyaging they must be voyaging
Perfect
I must have voyaged you must have voyaged he must have voyaged we must have voyaged you must have voyaged they must have voyaged
V-ing perfect
I must have been voyaging you must have been voyaging he must have been voyaging we must have been voyaging you must have been voyaging they must have been voyaging
Negation
Simple form
I must not voyage you must not voyage he must not voyage we must not voyage you must not voyage they must not voyage
V-ing form
I must not be voyaging you must not be voyaging he must not be voyaging we must not be voyaging you must not be voyaging they must not be voyaging
Perfect
I must not have voyaged you must not have voyaged he must not have voyaged we must not have voyaged you must not have voyaged they must not have voyaged
V-ing perfect
I must not have been voyaging you must not have been voyaging he must not have been voyaging we must not have been voyaging you must not have been voyaging they must not have been voyaging
Interrogative form
Simple form
must I voyage? must you voyage? must he voyage? must we voyage? must you voyage? must they voyage?
V-ing form
must I be voyaging? must you be voyaging? must he be voyaging? must we be voyaging? must you be voyaging? must they be voyaging?
Perfect
must I have voyaged? must you have voyaged? must he have voyaged? must we have voyaged? must you have voyaged? must they have voyaged?
V-ing perfect
must I have been voyaging? must you have been voyaging? must he have been voyaging? must we have been voyaging? must you have been voyaging? must they have been voyaging?
Interro-negative form
Simple form
must I not voyage? must you not voyage? must he not voyage? must we not voyage? must you not voyage? must they not voyage?
V-ing form
must I not be voyaging? must you not be voyaging? must he not be voyaging? must we not be voyaging? must you not be voyaging? must they not be voyaging?
Perfect
must I not have voyaged? must you not have voyaged? must he not have voyaged? must we not have voyaged? must you not have voyaged? must they not have voyaged?
V-ing perfect
must I not have been voyaging? must you not have been voyaging? must he not have been voyaging? must we not have been voyaging? must you not have been voyaging? must they not have been voyaging?