must ransack
Regular verb: ransack - ransacked- ransacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must ransack
you must ransack
he must ransack
we must ransack
you must ransack
they must ransack 	I must be ransacking
you must be ransacking
he must be ransacking
we must be ransacking
you must be ransacking
they must be ransacking	I must have ransacked
you must have ransacked
he must have ransacked
we must have ransacked
you must have ransacked
they must have ransacked	I must have been ransacking
you must have been ransacking
he must have been ransacking
we must have been ransacking
you must have been ransacking
they must have been ransacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not ransack
you must not ransack
he must not ransack
we must not ransack
you must not ransack
they must not ransack 	I must not be ransacking
you must not be ransacking
he must not be ransacking
we must not be ransacking
you must not be ransacking
they must not be ransacking	I must not have ransacked
you must not have ransacked
he must not have ransacked
we must not have ransacked
you must not have ransacked
they must not have ransacked	I must not have been ransacking
you must not have been ransacking
he must not have been ransacking
we must not have been ransacking
you must not have been ransacking
they must not have been ransacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I ransack?
must you ransack?
must he ransack?
must we ransack?
must you ransack?
must they ransack? 	must I be ransacking?
must you be ransacking?
must he be ransacking?
must we be ransacking?
must you be ransacking?
must they be ransacking? 	must I have ransacked?
must you have ransacked?
must he have ransacked?
must we have ransacked?
must you have ransacked?
must they have ransacked? 	must I have been ransacking?
must you have been ransacking?
must he have been ransacking?
must we have been ransacking?
must you have been ransacking?
must they have been ransacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not ransack?
must you not ransack?
must he not ransack?
must we not ransack?
must you not ransack?
must they not ransack? 	must I not be ransacking?
must you not be ransacking?
must he not be ransacking?
must we not be ransacking?
must you not be ransacking?
must they not be ransacking? 	must I not have ransacked?
must you not have ransacked?
must he not have ransacked?
must we not have ransacked?
must you not have ransacked?
must they not have ransacked? 	must I not have been ransacking?
must you not have been ransacking?
must he not have been ransacking?
must we not have been ransacking?
must you not have been ransacking?
must they not have been ransacking?