may contravene
Regular verb: contravene - contravened- contravened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may contravene
you may contravene
she may contravene
we may contravene
you may contravene
they may contravene 	I may be contravening
you may be contravening
she may be contravening
we may be contravening
you may be contravening
they may be contravening	I may have contravened
you may have contravened
she may have contravened
we may have contravened
you may have contravened
they may have contravened	I may have been contravening
you may have been contravening
she may have been contravening
we may have been contravening
you may have been contravening
they may have been contravening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't contravene
you mayn't contravene
she mayn't contravene
we mayn't contravene
you mayn't contravene
they mayn't contravene 	I mayn't be contravening
you mayn't be contravening
she mayn't be contravening
we mayn't be contravening
you mayn't be contravening
they mayn't be contravening	I mayn't have contravened
you mayn't have contravened
she mayn't have contravened
we mayn't have contravened
you mayn't have contravened
they mayn't have contravened	I mayn't have been contravening
you mayn't have been contravening
she mayn't have been contravening
we mayn't have been contravening
you mayn't have been contravening
they mayn't have been contravening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I contravene?
may you contravene?
may she contravene?
may we contravene?
may you contravene?
may they contravene? 	may I be contravening?
may you be contravening?
may she be contravening?
may we be contravening?
may you be contravening?
may they be contravening? 	may I have contravened?
may you have contravened?
may she have contravened?
may we have contravened?
may you have contravened?
may they have contravened? 	may I have been contravening?
may you have been contravening?
may she have been contravening?
may we have been contravening?
may you have been contravening?
may they have been contravening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I contravene?
mayn't you contravene?
mayn't she contravene?
mayn't we contravene?
mayn't you contravene?
mayn't they contravene? 	mayn't I be contravening?
mayn't you be contravening?
mayn't she be contravening?
mayn't we be contravening?
mayn't you be contravening?
mayn't they be contravening? 	mayn't I have contravened?
mayn't you have contravened?
mayn't she have contravened?
mayn't we have contravened?
mayn't you have contravened?
mayn't they have contravened? 	mayn't I have been contravening?
mayn't you have been contravening?
mayn't she have been contravening?
mayn't we have been contravening?
mayn't you have been contravening?
mayn't they have been contravening?