may decree
Regular verb: decree - decreed- decreed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may decree
you may decree
she may decree
we may decree
you may decree
they may decree 	I may be decreeing
you may be decreeing
she may be decreeing
we may be decreeing
you may be decreeing
they may be decreeing	I may have decreed
you may have decreed
she may have decreed
we may have decreed
you may have decreed
they may have decreed	I may have been decreeing
you may have been decreeing
she may have been decreeing
we may have been decreeing
you may have been decreeing
they may have been decreeing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't decree
you mayn't decree
she mayn't decree
we mayn't decree
you mayn't decree
they mayn't decree 	I mayn't be decreeing
you mayn't be decreeing
she mayn't be decreeing
we mayn't be decreeing
you mayn't be decreeing
they mayn't be decreeing	I mayn't have decreed
you mayn't have decreed
she mayn't have decreed
we mayn't have decreed
you mayn't have decreed
they mayn't have decreed	I mayn't have been decreeing
you mayn't have been decreeing
she mayn't have been decreeing
we mayn't have been decreeing
you mayn't have been decreeing
they mayn't have been decreeing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I decree?
may you decree?
may she decree?
may we decree?
may you decree?
may they decree? 	may I be decreeing?
may you be decreeing?
may she be decreeing?
may we be decreeing?
may you be decreeing?
may they be decreeing? 	may I have decreed?
may you have decreed?
may she have decreed?
may we have decreed?
may you have decreed?
may they have decreed? 	may I have been decreeing?
may you have been decreeing?
may she have been decreeing?
may we have been decreeing?
may you have been decreeing?
may they have been decreeing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I decree?
mayn't you decree?
mayn't she decree?
mayn't we decree?
mayn't you decree?
mayn't they decree? 	mayn't I be decreeing?
mayn't you be decreeing?
mayn't she be decreeing?
mayn't we be decreeing?
mayn't you be decreeing?
mayn't they be decreeing? 	mayn't I have decreed?
mayn't you have decreed?
mayn't she have decreed?
mayn't we have decreed?
mayn't you have decreed?
mayn't they have decreed? 	mayn't I have been decreeing?
mayn't you have been decreeing?
mayn't she have been decreeing?
mayn't we have been decreeing?
mayn't you have been decreeing?
mayn't they have been decreeing?