must affirm
Regular verb: affirm - affirmed- affirmed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must affirm
you must affirm
she must affirm
we must affirm
you must affirm
they must affirm 	I must be affirming
you must be affirming
she must be affirming
we must be affirming
you must be affirming
they must be affirming	I must have affirmed
you must have affirmed
she must have affirmed
we must have affirmed
you must have affirmed
they must have affirmed	I must have been affirming
you must have been affirming
she must have been affirming
we must have been affirming
you must have been affirming
they must have been affirming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't affirm
you mustn't affirm
she mustn't affirm
we mustn't affirm
you mustn't affirm
they mustn't affirm 	I mustn't be affirming
you mustn't be affirming
she mustn't be affirming
we mustn't be affirming
you mustn't be affirming
they mustn't be affirming	I mustn't have affirmed
you mustn't have affirmed
she mustn't have affirmed
we mustn't have affirmed
you mustn't have affirmed
they mustn't have affirmed	I mustn't have been affirming
you mustn't have been affirming
she mustn't have been affirming
we mustn't have been affirming
you mustn't have been affirming
they mustn't have been affirming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I affirm?
must you affirm?
must she affirm?
must we affirm?
must you affirm?
must they affirm? 	must I be affirming?
must you be affirming?
must she be affirming?
must we be affirming?
must you be affirming?
must they be affirming? 	must I have affirmed?
must you have affirmed?
must she have affirmed?
must we have affirmed?
must you have affirmed?
must they have affirmed? 	must I have been affirming?
must you have been affirming?
must she have been affirming?
must we have been affirming?
must you have been affirming?
must they have been affirming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I affirm?
mustn't you affirm?
mustn't she affirm?
mustn't we affirm?
mustn't you affirm?
mustn't they affirm? 	mustn't I be affirming?
mustn't you be affirming?
mustn't she be affirming?
mustn't we be affirming?
mustn't you be affirming?
mustn't they be affirming? 	mustn't I have affirmed?
mustn't you have affirmed?
mustn't she have affirmed?
mustn't we have affirmed?
mustn't you have affirmed?
mustn't they have affirmed? 	mustn't I have been affirming?
mustn't you have been affirming?
mustn't she have been affirming?
mustn't we have been affirming?
mustn't you have been affirming?
mustn't they have been affirming?