may reference
Regular verb: reference - referenced- referenced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may reference
you may reference
she may reference
we may reference
you may reference
they may reference 	I may be referencing
you may be referencing
she may be referencing
we may be referencing
you may be referencing
they may be referencing	I may have referenced
you may have referenced
she may have referenced
we may have referenced
you may have referenced
they may have referenced	I may have been referencing
you may have been referencing
she may have been referencing
we may have been referencing
you may have been referencing
they may have been referencing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't reference
you mayn't reference
she mayn't reference
we mayn't reference
you mayn't reference
they mayn't reference 	I mayn't be referencing
you mayn't be referencing
she mayn't be referencing
we mayn't be referencing
you mayn't be referencing
they mayn't be referencing	I mayn't have referenced
you mayn't have referenced
she mayn't have referenced
we mayn't have referenced
you mayn't have referenced
they mayn't have referenced	I mayn't have been referencing
you mayn't have been referencing
she mayn't have been referencing
we mayn't have been referencing
you mayn't have been referencing
they mayn't have been referencing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I reference?
may you reference?
may she reference?
may we reference?
may you reference?
may they reference? 	may I be referencing?
may you be referencing?
may she be referencing?
may we be referencing?
may you be referencing?
may they be referencing? 	may I have referenced?
may you have referenced?
may she have referenced?
may we have referenced?
may you have referenced?
may they have referenced? 	may I have been referencing?
may you have been referencing?
may she have been referencing?
may we have been referencing?
may you have been referencing?
may they have been referencing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I reference?
mayn't you reference?
mayn't she reference?
mayn't we reference?
mayn't you reference?
mayn't they reference? 	mayn't I be referencing?
mayn't you be referencing?
mayn't she be referencing?
mayn't we be referencing?
mayn't you be referencing?
mayn't they be referencing? 	mayn't I have referenced?
mayn't you have referenced?
mayn't she have referenced?
mayn't we have referenced?
mayn't you have referenced?
mayn't they have referenced? 	mayn't I have been referencing?
mayn't you have been referencing?
mayn't she have been referencing?
mayn't we have been referencing?
mayn't you have been referencing?
mayn't they have been referencing?