I must apprise you must apprise he must apprise we must apprise you must apprise they must apprise
V-ing form
I must be apprising you must be apprising he must be apprising we must be apprising you must be apprising they must be apprising
Perfect
I must have apprised you must have apprised he must have apprised we must have apprised you must have apprised they must have apprised
V-ing perfect
I must have been apprising you must have been apprising he must have been apprising we must have been apprising you must have been apprising they must have been apprising
Negation
Simple form
I must not apprise you must not apprise he must not apprise we must not apprise you must not apprise they must not apprise
V-ing form
I must not be apprising you must not be apprising he must not be apprising we must not be apprising you must not be apprising they must not be apprising
Perfect
I must not have apprised you must not have apprised he must not have apprised we must not have apprised you must not have apprised they must not have apprised
V-ing perfect
I must not have been apprising you must not have been apprising he must not have been apprising we must not have been apprising you must not have been apprising they must not have been apprising
Interrogative form
Simple form
must I apprise? must you apprise? must he apprise? must we apprise? must you apprise? must they apprise?
V-ing form
must I be apprising? must you be apprising? must he be apprising? must we be apprising? must you be apprising? must they be apprising?
Perfect
must I have apprised? must you have apprised? must he have apprised? must we have apprised? must you have apprised? must they have apprised?
V-ing perfect
must I have been apprising? must you have been apprising? must he have been apprising? must we have been apprising? must you have been apprising? must they have been apprising?
Interro-negative form
Simple form
must I not apprise? must you not apprise? must he not apprise? must we not apprise? must you not apprise? must they not apprise?
V-ing form
must I not be apprising? must you not be apprising? must he not be apprising? must we not be apprising? must you not be apprising? must they not be apprising?
Perfect
must I not have apprised? must you not have apprised? must he not have apprised? must we not have apprised? must you not have apprised? must they not have apprised?
V-ing perfect
must I not have been apprising? must you not have been apprising? must he not have been apprising? must we not have been apprising? must you not have been apprising? must they not have been apprising?