I must configure you must configure she must configure we must configure you must configure they must configure
V-ing form
I must be configuring you must be configuring she must be configuring we must be configuring you must be configuring they must be configuring
Perfect
I must have configured you must have configured she must have configured we must have configured you must have configured they must have configured
V-ing perfect
I must have been configuring you must have been configuring she must have been configuring we must have been configuring you must have been configuring they must have been configuring
Negation
Simple form
I must not configure you must not configure she must not configure we must not configure you must not configure they must not configure
V-ing form
I must not be configuring you must not be configuring she must not be configuring we must not be configuring you must not be configuring they must not be configuring
Perfect
I must not have configured you must not have configured she must not have configured we must not have configured you must not have configured they must not have configured
V-ing perfect
I must not have been configuring you must not have been configuring she must not have been configuring we must not have been configuring you must not have been configuring they must not have been configuring
Interrogative form
Simple form
must I configure? must you configure? must she configure? must we configure? must you configure? must they configure?
V-ing form
must I be configuring? must you be configuring? must she be configuring? must we be configuring? must you be configuring? must they be configuring?
Perfect
must I have configured? must you have configured? must she have configured? must we have configured? must you have configured? must they have configured?
V-ing perfect
must I have been configuring? must you have been configuring? must she have been configuring? must we have been configuring? must you have been configuring? must they have been configuring?
Interro-negative form
Simple form
must I not configure? must you not configure? must she not configure? must we not configure? must you not configure? must they not configure?
V-ing form
must I not be configuring? must you not be configuring? must she not be configuring? must we not be configuring? must you not be configuring? must they not be configuring?
Perfect
must I not have configured? must you not have configured? must she not have configured? must we not have configured? must you not have configured? must they not have configured?
V-ing perfect
must I not have been configuring? must you not have been configuring? must she not have been configuring? must we not have been configuring? must you not have been configuring? must they not have been configuring?