I must sanction you must sanction she must sanction we must sanction you must sanction they must sanction
V-ing form
I must be sanctioning you must be sanctioning she must be sanctioning we must be sanctioning you must be sanctioning they must be sanctioning
Perfect
I must have sanctioned you must have sanctioned she must have sanctioned we must have sanctioned you must have sanctioned they must have sanctioned
V-ing perfect
I must have been sanctioning you must have been sanctioning she must have been sanctioning we must have been sanctioning you must have been sanctioning they must have been sanctioning
Negation
Simple form
I must not sanction you must not sanction she must not sanction we must not sanction you must not sanction they must not sanction
V-ing form
I must not be sanctioning you must not be sanctioning she must not be sanctioning we must not be sanctioning you must not be sanctioning they must not be sanctioning
Perfect
I must not have sanctioned you must not have sanctioned she must not have sanctioned we must not have sanctioned you must not have sanctioned they must not have sanctioned
V-ing perfect
I must not have been sanctioning you must not have been sanctioning she must not have been sanctioning we must not have been sanctioning you must not have been sanctioning they must not have been sanctioning
Interrogative form
Simple form
must I sanction? must you sanction? must she sanction? must we sanction? must you sanction? must they sanction?
V-ing form
must I be sanctioning? must you be sanctioning? must she be sanctioning? must we be sanctioning? must you be sanctioning? must they be sanctioning?
Perfect
must I have sanctioned? must you have sanctioned? must she have sanctioned? must we have sanctioned? must you have sanctioned? must they have sanctioned?
V-ing perfect
must I have been sanctioning? must you have been sanctioning? must she have been sanctioning? must we have been sanctioning? must you have been sanctioning? must they have been sanctioning?
Interro-negative form
Simple form
must I not sanction? must you not sanction? must she not sanction? must we not sanction? must you not sanction? must they not sanction?
V-ing form
must I not be sanctioning? must you not be sanctioning? must she not be sanctioning? must we not be sanctioning? must you not be sanctioning? must they not be sanctioning?
Perfect
must I not have sanctioned? must you not have sanctioned? must she not have sanctioned? must we not have sanctioned? must you not have sanctioned? must they not have sanctioned?
V-ing perfect
must I not have been sanctioning? must you not have been sanctioning? must she not have been sanctioning? must we not have been sanctioning? must you not have been sanctioning? must they not have been sanctioning?