must free
Regular verb: free - freed- freed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must free
you must free
she must free
we must free
you must free
they must free 	I must be freeing
you must be freeing
she must be freeing
we must be freeing
you must be freeing
they must be freeing	I must have freed
you must have freed
she must have freed
we must have freed
you must have freed
they must have freed	I must have been freeing
you must have been freeing
she must have been freeing
we must have been freeing
you must have been freeing
they must have been freeing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not free
you must not free
she must not free
we must not free
you must not free
they must not free 	I must not be freeing
you must not be freeing
she must not be freeing
we must not be freeing
you must not be freeing
they must not be freeing	I must not have freed
you must not have freed
she must not have freed
we must not have freed
you must not have freed
they must not have freed	I must not have been freeing
you must not have been freeing
she must not have been freeing
we must not have been freeing
you must not have been freeing
they must not have been freeing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I free?
must you free?
must she free?
must we free?
must you free?
must they free? 	must I be freeing?
must you be freeing?
must she be freeing?
must we be freeing?
must you be freeing?
must they be freeing? 	must I have freed?
must you have freed?
must she have freed?
must we have freed?
must you have freed?
must they have freed? 	must I have been freeing?
must you have been freeing?
must she have been freeing?
must we have been freeing?
must you have been freeing?
must they have been freeing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not free?
must you not free?
must she not free?
must we not free?
must you not free?
must they not free? 	must I not be freeing?
must you not be freeing?
must she not be freeing?
must we not be freeing?
must you not be freeing?
must they not be freeing? 	must I not have freed?
must you not have freed?
must she not have freed?
must we not have freed?
must you not have freed?
must they not have freed? 	must I not have been freeing?
must you not have been freeing?
must she not have been freeing?
must we not have been freeing?
must you not have been freeing?
must they not have been freeing?