I must rig you must rig he must rig we must rig you must rig they must rig
V-ing form
I must be rigging you must be rigging he must be rigging we must be rigging you must be rigging they must be rigging
Perfect
I must have rigged you must have rigged he must have rigged we must have rigged you must have rigged they must have rigged
V-ing perfect
I must have been rigging you must have been rigging he must have been rigging we must have been rigging you must have been rigging they must have been rigging
Negation
Simple form
I must not rig you must not rig he must not rig we must not rig you must not rig they must not rig
V-ing form
I must not be rigging you must not be rigging he must not be rigging we must not be rigging you must not be rigging they must not be rigging
Perfect
I must not have rigged you must not have rigged he must not have rigged we must not have rigged you must not have rigged they must not have rigged
V-ing perfect
I must not have been rigging you must not have been rigging he must not have been rigging we must not have been rigging you must not have been rigging they must not have been rigging
Interrogative form
Simple form
must I rig? must you rig? must he rig? must we rig? must you rig? must they rig?
V-ing form
must I be rigging? must you be rigging? must he be rigging? must we be rigging? must you be rigging? must they be rigging?
Perfect
must I have rigged? must you have rigged? must he have rigged? must we have rigged? must you have rigged? must they have rigged?
V-ing perfect
must I have been rigging? must you have been rigging? must he have been rigging? must we have been rigging? must you have been rigging? must they have been rigging?
Interro-negative form
Simple form
must I not rig? must you not rig? must he not rig? must we not rig? must you not rig? must they not rig?
V-ing form
must I not be rigging? must you not be rigging? must he not be rigging? must we not be rigging? must you not be rigging? must they not be rigging?
Perfect
must I not have rigged? must you not have rigged? must he not have rigged? must we not have rigged? must you not have rigged? must they not have rigged?
V-ing perfect
must I not have been rigging? must you not have been rigging? must he not have been rigging? must we not have been rigging? must you not have been rigging? must they not have been rigging?