I must unplug you must unplug she must unplug we must unplug you must unplug they must unplug
V-ing form
I must be unplugging you must be unplugging she must be unplugging we must be unplugging you must be unplugging they must be unplugging
Perfect
I must have unplugged you must have unplugged she must have unplugged we must have unplugged you must have unplugged they must have unplugged
V-ing perfect
I must have been unplugging you must have been unplugging she must have been unplugging we must have been unplugging you must have been unplugging they must have been unplugging
Negation
Simple form
I must not unplug you must not unplug she must not unplug we must not unplug you must not unplug they must not unplug
V-ing form
I must not be unplugging you must not be unplugging she must not be unplugging we must not be unplugging you must not be unplugging they must not be unplugging
Perfect
I must not have unplugged you must not have unplugged she must not have unplugged we must not have unplugged you must not have unplugged they must not have unplugged
V-ing perfect
I must not have been unplugging you must not have been unplugging she must not have been unplugging we must not have been unplugging you must not have been unplugging they must not have been unplugging
Interrogative form
Simple form
must I unplug? must you unplug? must she unplug? must we unplug? must you unplug? must they unplug?
V-ing form
must I be unplugging? must you be unplugging? must she be unplugging? must we be unplugging? must you be unplugging? must they be unplugging?
Perfect
must I have unplugged? must you have unplugged? must she have unplugged? must we have unplugged? must you have unplugged? must they have unplugged?
V-ing perfect
must I have been unplugging? must you have been unplugging? must she have been unplugging? must we have been unplugging? must you have been unplugging? must they have been unplugging?
Interro-negative form
Simple form
must I not unplug? must you not unplug? must she not unplug? must we not unplug? must you not unplug? must they not unplug?
V-ing form
must I not be unplugging? must you not be unplugging? must she not be unplugging? must we not be unplugging? must you not be unplugging? must they not be unplugging?
Perfect
must I not have unplugged? must you not have unplugged? must she not have unplugged? must we not have unplugged? must you not have unplugged? must they not have unplugged?
V-ing perfect
must I not have been unplugging? must you not have been unplugging? must she not have been unplugging? must we not have been unplugging? must you not have been unplugging? must they not have been unplugging?