may circumstantiate
Regular verb: circumstantiate - circumstantiated- circumstantiated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may circumstantiate
you may circumstantiate
she may circumstantiate
we may circumstantiate
you may circumstantiate
they may circumstantiate 	I may be circumstantiating
you may be circumstantiating
she may be circumstantiating
we may be circumstantiating
you may be circumstantiating
they may be circumstantiating	I may have circumstantiated
you may have circumstantiated
she may have circumstantiated
we may have circumstantiated
you may have circumstantiated
they may have circumstantiated	I may have been circumstantiating
you may have been circumstantiating
she may have been circumstantiating
we may have been circumstantiating
you may have been circumstantiating
they may have been circumstantiating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't circumstantiate
you mayn't circumstantiate
she mayn't circumstantiate
we mayn't circumstantiate
you mayn't circumstantiate
they mayn't circumstantiate 	I mayn't be circumstantiating
you mayn't be circumstantiating
she mayn't be circumstantiating
we mayn't be circumstantiating
you mayn't be circumstantiating
they mayn't be circumstantiating	I mayn't have circumstantiated
you mayn't have circumstantiated
she mayn't have circumstantiated
we mayn't have circumstantiated
you mayn't have circumstantiated
they mayn't have circumstantiated	I mayn't have been circumstantiating
you mayn't have been circumstantiating
she mayn't have been circumstantiating
we mayn't have been circumstantiating
you mayn't have been circumstantiating
they mayn't have been circumstantiating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I circumstantiate?
may you circumstantiate?
may she circumstantiate?
may we circumstantiate?
may you circumstantiate?
may they circumstantiate? 	may I be circumstantiating?
may you be circumstantiating?
may she be circumstantiating?
may we be circumstantiating?
may you be circumstantiating?
may they be circumstantiating? 	may I have circumstantiated?
may you have circumstantiated?
may she have circumstantiated?
may we have circumstantiated?
may you have circumstantiated?
may they have circumstantiated? 	may I have been circumstantiating?
may you have been circumstantiating?
may she have been circumstantiating?
may we have been circumstantiating?
may you have been circumstantiating?
may they have been circumstantiating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I circumstantiate?
mayn't you circumstantiate?
mayn't she circumstantiate?
mayn't we circumstantiate?
mayn't you circumstantiate?
mayn't they circumstantiate? 	mayn't I be circumstantiating?
mayn't you be circumstantiating?
mayn't she be circumstantiating?
mayn't we be circumstantiating?
mayn't you be circumstantiating?
mayn't they be circumstantiating? 	mayn't I have circumstantiated?
mayn't you have circumstantiated?
mayn't she have circumstantiated?
mayn't we have circumstantiated?
mayn't you have circumstantiated?
mayn't they have circumstantiated? 	mayn't I have been circumstantiating?
mayn't you have been circumstantiating?
mayn't she have been circumstantiating?
mayn't we have been circumstantiating?
mayn't you have been circumstantiating?
mayn't they have been circumstantiating?