I must stanchion you must stanchion she must stanchion we must stanchion you must stanchion they must stanchion
V-ing form
I must be stanchioning you must be stanchioning she must be stanchioning we must be stanchioning you must be stanchioning they must be stanchioning
Perfect
I must have stanchioned you must have stanchioned she must have stanchioned we must have stanchioned you must have stanchioned they must have stanchioned
V-ing perfect
I must have been stanchioning you must have been stanchioning she must have been stanchioning we must have been stanchioning you must have been stanchioning they must have been stanchioning
Negation
Simple form
I must not stanchion you must not stanchion she must not stanchion we must not stanchion you must not stanchion they must not stanchion
V-ing form
I must not be stanchioning you must not be stanchioning she must not be stanchioning we must not be stanchioning you must not be stanchioning they must not be stanchioning
Perfect
I must not have stanchioned you must not have stanchioned she must not have stanchioned we must not have stanchioned you must not have stanchioned they must not have stanchioned
V-ing perfect
I must not have been stanchioning you must not have been stanchioning she must not have been stanchioning we must not have been stanchioning you must not have been stanchioning they must not have been stanchioning
Interrogative form
Simple form
must I stanchion? must you stanchion? must she stanchion? must we stanchion? must you stanchion? must they stanchion?
V-ing form
must I be stanchioning? must you be stanchioning? must she be stanchioning? must we be stanchioning? must you be stanchioning? must they be stanchioning?
Perfect
must I have stanchioned? must you have stanchioned? must she have stanchioned? must we have stanchioned? must you have stanchioned? must they have stanchioned?
V-ing perfect
must I have been stanchioning? must you have been stanchioning? must she have been stanchioning? must we have been stanchioning? must you have been stanchioning? must they have been stanchioning?
Interro-negative form
Simple form
must I not stanchion? must you not stanchion? must she not stanchion? must we not stanchion? must you not stanchion? must they not stanchion?
V-ing form
must I not be stanchioning? must you not be stanchioning? must she not be stanchioning? must we not be stanchioning? must you not be stanchioning? must they not be stanchioning?
Perfect
must I not have stanchioned? must you not have stanchioned? must she not have stanchioned? must we not have stanchioned? must you not have stanchioned? must they not have stanchioned?
V-ing perfect
must I not have been stanchioning? must you not have been stanchioning? must she not have been stanchioning? must we not have been stanchioning? must you not have been stanchioning? must they not have been stanchioning?