I must govern you must govern she must govern we must govern you must govern they must govern
V-ing form
I must be governing you must be governing she must be governing we must be governing you must be governing they must be governing
Perfect
I must have governed you must have governed she must have governed we must have governed you must have governed they must have governed
V-ing perfect
I must have been governing you must have been governing she must have been governing we must have been governing you must have been governing they must have been governing
Negation
Simple form
I must not govern you must not govern she must not govern we must not govern you must not govern they must not govern
V-ing form
I must not be governing you must not be governing she must not be governing we must not be governing you must not be governing they must not be governing
Perfect
I must not have governed you must not have governed she must not have governed we must not have governed you must not have governed they must not have governed
V-ing perfect
I must not have been governing you must not have been governing she must not have been governing we must not have been governing you must not have been governing they must not have been governing
Interrogative form
Simple form
must I govern? must you govern? must she govern? must we govern? must you govern? must they govern?
V-ing form
must I be governing? must you be governing? must she be governing? must we be governing? must you be governing? must they be governing?
Perfect
must I have governed? must you have governed? must she have governed? must we have governed? must you have governed? must they have governed?
V-ing perfect
must I have been governing? must you have been governing? must she have been governing? must we have been governing? must you have been governing? must they have been governing?
Interro-negative form
Simple form
must I not govern? must you not govern? must she not govern? must we not govern? must you not govern? must they not govern?
V-ing form
must I not be governing? must you not be governing? must she not be governing? must we not be governing? must you not be governing? must they not be governing?
Perfect
must I not have governed? must you not have governed? must she not have governed? must we not have governed? must you not have governed? must they not have governed?
V-ing perfect
must I not have been governing? must you not have been governing? must she not have been governing? must we not have been governing? must you not have been governing? must they not have been governing?