must defibrinate
Regular verb: defibrinate - defibrinated- defibrinated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must defibrinate
you must defibrinate
she must defibrinate
we must defibrinate
you must defibrinate
they must defibrinate 	I must be defibrinating
you must be defibrinating
she must be defibrinating
we must be defibrinating
you must be defibrinating
they must be defibrinating	I must have defibrinated
you must have defibrinated
she must have defibrinated
we must have defibrinated
you must have defibrinated
they must have defibrinated	I must have been defibrinating
you must have been defibrinating
she must have been defibrinating
we must have been defibrinating
you must have been defibrinating
they must have been defibrinating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not defibrinate
you must not defibrinate
she must not defibrinate
we must not defibrinate
you must not defibrinate
they must not defibrinate 	I must not be defibrinating
you must not be defibrinating
she must not be defibrinating
we must not be defibrinating
you must not be defibrinating
they must not be defibrinating	I must not have defibrinated
you must not have defibrinated
she must not have defibrinated
we must not have defibrinated
you must not have defibrinated
they must not have defibrinated	I must not have been defibrinating
you must not have been defibrinating
she must not have been defibrinating
we must not have been defibrinating
you must not have been defibrinating
they must not have been defibrinating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I defibrinate?
must you defibrinate?
must she defibrinate?
must we defibrinate?
must you defibrinate?
must they defibrinate? 	must I be defibrinating?
must you be defibrinating?
must she be defibrinating?
must we be defibrinating?
must you be defibrinating?
must they be defibrinating? 	must I have defibrinated?
must you have defibrinated?
must she have defibrinated?
must we have defibrinated?
must you have defibrinated?
must they have defibrinated? 	must I have been defibrinating?
must you have been defibrinating?
must she have been defibrinating?
must we have been defibrinating?
must you have been defibrinating?
must they have been defibrinating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not defibrinate?
must you not defibrinate?
must she not defibrinate?
must we not defibrinate?
must you not defibrinate?
must they not defibrinate? 	must I not be defibrinating?
must you not be defibrinating?
must she not be defibrinating?
must we not be defibrinating?
must you not be defibrinating?
must they not be defibrinating? 	must I not have defibrinated?
must you not have defibrinated?
must she not have defibrinated?
must we not have defibrinated?
must you not have defibrinated?
must they not have defibrinated? 	must I not have been defibrinating?
must you not have been defibrinating?
must she not have been defibrinating?
must we not have been defibrinating?
must you not have been defibrinating?
must they not have been defibrinating?