may sanction
Regular verb: sanction - sanctioned- sanctioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may sanction
you may sanction
she may sanction
we may sanction
you may sanction
they may sanction 	I may be sanctioning
you may be sanctioning
she may be sanctioning
we may be sanctioning
you may be sanctioning
they may be sanctioning	I may have sanctioned
you may have sanctioned
she may have sanctioned
we may have sanctioned
you may have sanctioned
they may have sanctioned	I may have been sanctioning
you may have been sanctioning
she may have been sanctioning
we may have been sanctioning
you may have been sanctioning
they may have been sanctioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't sanction
you mayn't sanction
she mayn't sanction
we mayn't sanction
you mayn't sanction
they mayn't sanction 	I mayn't be sanctioning
you mayn't be sanctioning
she mayn't be sanctioning
we mayn't be sanctioning
you mayn't be sanctioning
they mayn't be sanctioning	I mayn't have sanctioned
you mayn't have sanctioned
she mayn't have sanctioned
we mayn't have sanctioned
you mayn't have sanctioned
they mayn't have sanctioned	I mayn't have been sanctioning
you mayn't have been sanctioning
she mayn't have been sanctioning
we mayn't have been sanctioning
you mayn't have been sanctioning
they mayn't have been sanctioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I sanction?
may you sanction?
may she sanction?
may we sanction?
may you sanction?
may they sanction? 	may I be sanctioning?
may you be sanctioning?
may she be sanctioning?
may we be sanctioning?
may you be sanctioning?
may they be sanctioning? 	may I have sanctioned?
may you have sanctioned?
may she have sanctioned?
may we have sanctioned?
may you have sanctioned?
may they have sanctioned? 	may I have been sanctioning?
may you have been sanctioning?
may she have been sanctioning?
may we have been sanctioning?
may you have been sanctioning?
may they have been sanctioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I sanction?
mayn't you sanction?
mayn't she sanction?
mayn't we sanction?
mayn't you sanction?
mayn't they sanction? 	mayn't I be sanctioning?
mayn't you be sanctioning?
mayn't she be sanctioning?
mayn't we be sanctioning?
mayn't you be sanctioning?
mayn't they be sanctioning? 	mayn't I have sanctioned?
mayn't you have sanctioned?
mayn't she have sanctioned?
mayn't we have sanctioned?
mayn't you have sanctioned?
mayn't they have sanctioned? 	mayn't I have been sanctioning?
mayn't you have been sanctioning?
mayn't she have been sanctioning?
mayn't we have been sanctioning?
mayn't you have been sanctioning?
mayn't they have been sanctioning?