must ruminate
Regular verb: ruminate - ruminated- ruminated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must ruminate
you must ruminate
she must ruminate
we must ruminate
you must ruminate
they must ruminate 	I must be ruminating
you must be ruminating
she must be ruminating
we must be ruminating
you must be ruminating
they must be ruminating	I must have ruminated
you must have ruminated
she must have ruminated
we must have ruminated
you must have ruminated
they must have ruminated	I must have been ruminating
you must have been ruminating
she must have been ruminating
we must have been ruminating
you must have been ruminating
they must have been ruminating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not ruminate
you must not ruminate
she must not ruminate
we must not ruminate
you must not ruminate
they must not ruminate 	I must not be ruminating
you must not be ruminating
she must not be ruminating
we must not be ruminating
you must not be ruminating
they must not be ruminating	I must not have ruminated
you must not have ruminated
she must not have ruminated
we must not have ruminated
you must not have ruminated
they must not have ruminated	I must not have been ruminating
you must not have been ruminating
she must not have been ruminating
we must not have been ruminating
you must not have been ruminating
they must not have been ruminating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I ruminate?
must you ruminate?
must she ruminate?
must we ruminate?
must you ruminate?
must they ruminate? 	must I be ruminating?
must you be ruminating?
must she be ruminating?
must we be ruminating?
must you be ruminating?
must they be ruminating? 	must I have ruminated?
must you have ruminated?
must she have ruminated?
must we have ruminated?
must you have ruminated?
must they have ruminated? 	must I have been ruminating?
must you have been ruminating?
must she have been ruminating?
must we have been ruminating?
must you have been ruminating?
must they have been ruminating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not ruminate?
must you not ruminate?
must she not ruminate?
must we not ruminate?
must you not ruminate?
must they not ruminate? 	must I not be ruminating?
must you not be ruminating?
must she not be ruminating?
must we not be ruminating?
must you not be ruminating?
must they not be ruminating? 	must I not have ruminated?
must you not have ruminated?
must she not have ruminated?
must we not have ruminated?
must you not have ruminated?
must they not have ruminated? 	must I not have been ruminating?
must you not have been ruminating?
must she not have been ruminating?
must we not have been ruminating?
must you not have been ruminating?
must they not have been ruminating?