may transubstantiate
Regular verb: transubstantiate - transubstantiated- transubstantiated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may transubstantiate
you may transubstantiate
she may transubstantiate
we may transubstantiate
you may transubstantiate
they may transubstantiate 	I may be transubstantiating
you may be transubstantiating
she may be transubstantiating
we may be transubstantiating
you may be transubstantiating
they may be transubstantiating	I may have transubstantiated
you may have transubstantiated
she may have transubstantiated
we may have transubstantiated
you may have transubstantiated
they may have transubstantiated	I may have been transubstantiating
you may have been transubstantiating
she may have been transubstantiating
we may have been transubstantiating
you may have been transubstantiating
they may have been transubstantiating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't transubstantiate
you mayn't transubstantiate
she mayn't transubstantiate
we mayn't transubstantiate
you mayn't transubstantiate
they mayn't transubstantiate 	I mayn't be transubstantiating
you mayn't be transubstantiating
she mayn't be transubstantiating
we mayn't be transubstantiating
you mayn't be transubstantiating
they mayn't be transubstantiating	I mayn't have transubstantiated
you mayn't have transubstantiated
she mayn't have transubstantiated
we mayn't have transubstantiated
you mayn't have transubstantiated
they mayn't have transubstantiated	I mayn't have been transubstantiating
you mayn't have been transubstantiating
she mayn't have been transubstantiating
we mayn't have been transubstantiating
you mayn't have been transubstantiating
they mayn't have been transubstantiating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I transubstantiate?
may you transubstantiate?
may she transubstantiate?
may we transubstantiate?
may you transubstantiate?
may they transubstantiate? 	may I be transubstantiating?
may you be transubstantiating?
may she be transubstantiating?
may we be transubstantiating?
may you be transubstantiating?
may they be transubstantiating? 	may I have transubstantiated?
may you have transubstantiated?
may she have transubstantiated?
may we have transubstantiated?
may you have transubstantiated?
may they have transubstantiated? 	may I have been transubstantiating?
may you have been transubstantiating?
may she have been transubstantiating?
may we have been transubstantiating?
may you have been transubstantiating?
may they have been transubstantiating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I transubstantiate?
mayn't you transubstantiate?
mayn't she transubstantiate?
mayn't we transubstantiate?
mayn't you transubstantiate?
mayn't they transubstantiate? 	mayn't I be transubstantiating?
mayn't you be transubstantiating?
mayn't she be transubstantiating?
mayn't we be transubstantiating?
mayn't you be transubstantiating?
mayn't they be transubstantiating? 	mayn't I have transubstantiated?
mayn't you have transubstantiated?
mayn't she have transubstantiated?
mayn't we have transubstantiated?
mayn't you have transubstantiated?
mayn't they have transubstantiated? 	mayn't I have been transubstantiating?
mayn't you have been transubstantiating?
mayn't she have been transubstantiating?
mayn't we have been transubstantiating?
mayn't you have been transubstantiating?
mayn't they have been transubstantiating?