may accession
Regular verb: accession - accessioned- accessioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may accession
you may accession
he may accession
we may accession
you may accession
they may accession 	I may be accessioning
you may be accessioning
he may be accessioning
we may be accessioning
you may be accessioning
they may be accessioning	I may have accessioned
you may have accessioned
he may have accessioned
we may have accessioned
you may have accessioned
they may have accessioned	I may have been accessioning
you may have been accessioning
he may have been accessioning
we may have been accessioning
you may have been accessioning
they may have been accessioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't accession
you mayn't accession
he mayn't accession
we mayn't accession
you mayn't accession
they mayn't accession 	I mayn't be accessioning
you mayn't be accessioning
he mayn't be accessioning
we mayn't be accessioning
you mayn't be accessioning
they mayn't be accessioning	I mayn't have accessioned
you mayn't have accessioned
he mayn't have accessioned
we mayn't have accessioned
you mayn't have accessioned
they mayn't have accessioned	I mayn't have been accessioning
you mayn't have been accessioning
he mayn't have been accessioning
we mayn't have been accessioning
you mayn't have been accessioning
they mayn't have been accessioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I accession?
may you accession?
may he accession?
may we accession?
may you accession?
may they accession? 	may I be accessioning?
may you be accessioning?
may he be accessioning?
may we be accessioning?
may you be accessioning?
may they be accessioning? 	may I have accessioned?
may you have accessioned?
may he have accessioned?
may we have accessioned?
may you have accessioned?
may they have accessioned? 	may I have been accessioning?
may you have been accessioning?
may he have been accessioning?
may we have been accessioning?
may you have been accessioning?
may they have been accessioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I accession?
mayn't you accession?
mayn't he accession?
mayn't we accession?
mayn't you accession?
mayn't they accession? 	mayn't I be accessioning?
mayn't you be accessioning?
mayn't he be accessioning?
mayn't we be accessioning?
mayn't you be accessioning?
mayn't they be accessioning? 	mayn't I have accessioned?
mayn't you have accessioned?
mayn't he have accessioned?
mayn't we have accessioned?
mayn't you have accessioned?
mayn't they have accessioned? 	mayn't I have been accessioning?
mayn't you have been accessioning?
mayn't he have been accessioning?
mayn't we have been accessioning?
mayn't you have been accessioning?
mayn't they have been accessioning?