I must botanize you must botanize he must botanize we must botanize you must botanize they must botanize
V-ing form
I must be botanizing you must be botanizing he must be botanizing we must be botanizing you must be botanizing they must be botanizing
Perfect
I must have botanized you must have botanized he must have botanized we must have botanized you must have botanized they must have botanized
V-ing perfect
I must have been botanizing you must have been botanizing he must have been botanizing we must have been botanizing you must have been botanizing they must have been botanizing
Negation
Simple form
I must not botanize you must not botanize he must not botanize we must not botanize you must not botanize they must not botanize
V-ing form
I must not be botanizing you must not be botanizing he must not be botanizing we must not be botanizing you must not be botanizing they must not be botanizing
Perfect
I must not have botanized you must not have botanized he must not have botanized we must not have botanized you must not have botanized they must not have botanized
V-ing perfect
I must not have been botanizing you must not have been botanizing he must not have been botanizing we must not have been botanizing you must not have been botanizing they must not have been botanizing
Interrogative form
Simple form
must I botanize? must you botanize? must he botanize? must we botanize? must you botanize? must they botanize?
V-ing form
must I be botanizing? must you be botanizing? must he be botanizing? must we be botanizing? must you be botanizing? must they be botanizing?
Perfect
must I have botanized? must you have botanized? must he have botanized? must we have botanized? must you have botanized? must they have botanized?
V-ing perfect
must I have been botanizing? must you have been botanizing? must he have been botanizing? must we have been botanizing? must you have been botanizing? must they have been botanizing?
Interro-negative form
Simple form
must I not botanize? must you not botanize? must he not botanize? must we not botanize? must you not botanize? must they not botanize?
V-ing form
must I not be botanizing? must you not be botanizing? must he not be botanizing? must we not be botanizing? must you not be botanizing? must they not be botanizing?
Perfect
must I not have botanized? must you not have botanized? must he not have botanized? must we not have botanized? must you not have botanized? must they not have botanized?
V-ing perfect
must I not have been botanizing? must you not have been botanizing? must he not have been botanizing? must we not have been botanizing? must you not have been botanizing? must they not have been botanizing?