may transubstantiate
Regular verb: transubstantiate - transubstantiated- transubstantiated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may transubstantiate
you may transubstantiate
he may transubstantiate
we may transubstantiate
you may transubstantiate
they may transubstantiate 	I may be transubstantiating
you may be transubstantiating
he may be transubstantiating
we may be transubstantiating
you may be transubstantiating
they may be transubstantiating	I may have transubstantiated
you may have transubstantiated
he 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
he 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
he 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
he 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
he 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
he 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 he transubstantiate?
may we transubstantiate?
may you transubstantiate?
may they transubstantiate? 	may I be transubstantiating?
may you be transubstantiating?
may he be transubstantiating?
may we be transubstantiating?
may you be transubstantiating?
may they be transubstantiating? 	may I have transubstantiated?
may you have transubstantiated?
may he 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 he 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 he 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 he 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 he 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 he have been transubstantiating?
mayn't we have been transubstantiating?
mayn't you have been transubstantiating?
mayn't they have been transubstantiating?