must infract
Regular verb: infract - infracted- infracted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must infract
you must infract
she must infract
we must infract
you must infract
they must infract 	I must be infracting
you must be infracting
she must be infracting
we must be infracting
you must be infracting
they must be infracting	I must have infracted
you must have infracted
she must have infracted
we must have infracted
you must have infracted
they must have infracted	I must have been infracting
you must have been infracting
she must have been infracting
we must have been infracting
you must have been infracting
they must have been infracting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't infract
you mustn't infract
she mustn't infract
we mustn't infract
you mustn't infract
they mustn't infract 	I mustn't be infracting
you mustn't be infracting
she mustn't be infracting
we mustn't be infracting
you mustn't be infracting
they mustn't be infracting	I mustn't have infracted
you mustn't have infracted
she mustn't have infracted
we mustn't have infracted
you mustn't have infracted
they mustn't have infracted	I mustn't have been infracting
you mustn't have been infracting
she mustn't have been infracting
we mustn't have been infracting
you mustn't have been infracting
they mustn't have been infracting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I infract?
must you infract?
must she infract?
must we infract?
must you infract?
must they infract? 	must I be infracting?
must you be infracting?
must she be infracting?
must we be infracting?
must you be infracting?
must they be infracting? 	must I have infracted?
must you have infracted?
must she have infracted?
must we have infracted?
must you have infracted?
must they have infracted? 	must I have been infracting?
must you have been infracting?
must she have been infracting?
must we have been infracting?
must you have been infracting?
must they have been infracting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I infract?
mustn't you infract?
mustn't she infract?
mustn't we infract?
mustn't you infract?
mustn't they infract? 	mustn't I be infracting?
mustn't you be infracting?
mustn't she be infracting?
mustn't we be infracting?
mustn't you be infracting?
mustn't they be infracting? 	mustn't I have infracted?
mustn't you have infracted?
mustn't she have infracted?
mustn't we have infracted?
mustn't you have infracted?
mustn't they have infracted? 	mustn't I have been infracting?
mustn't you have been infracting?
mustn't she have been infracting?
mustn't we have been infracting?
mustn't you have been infracting?
mustn't they have been infracting?