may coin
Regular verb: coin - coined- coined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may coin
you may coin
he may coin
we may coin
you may coin
they may coin 	I may be coining
you may be coining
he may be coining
we may be coining
you may be coining
they may be coining	I may have coined
you may have coined
he may have coined
we may have coined
you may have coined
they may have coined	I may have been coining
you may have been coining
he may have been coining
we may have been coining
you may have been coining
they may have been coining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't coin
you mayn't coin
he mayn't coin
we mayn't coin
you mayn't coin
they mayn't coin 	I mayn't be coining
you mayn't be coining
he mayn't be coining
we mayn't be coining
you mayn't be coining
they mayn't be coining	I mayn't have coined
you mayn't have coined
he mayn't have coined
we mayn't have coined
you mayn't have coined
they mayn't have coined	I mayn't have been coining
you mayn't have been coining
he mayn't have been coining
we mayn't have been coining
you mayn't have been coining
they mayn't have been coining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I coin?
may you coin?
may he coin?
may we coin?
may you coin?
may they coin? 	may I be coining?
may you be coining?
may he be coining?
may we be coining?
may you be coining?
may they be coining? 	may I have coined?
may you have coined?
may he have coined?
may we have coined?
may you have coined?
may they have coined? 	may I have been coining?
may you have been coining?
may he have been coining?
may we have been coining?
may you have been coining?
may they have been coining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I coin?
mayn't you coin?
mayn't he coin?
mayn't we coin?
mayn't you coin?
mayn't they coin? 	mayn't I be coining?
mayn't you be coining?
mayn't he be coining?
mayn't we be coining?
mayn't you be coining?
mayn't they be coining? 	mayn't I have coined?
mayn't you have coined?
mayn't he have coined?
mayn't we have coined?
mayn't you have coined?
mayn't they have coined? 	mayn't I have been coining?
mayn't you have been coining?
mayn't he have been coining?
mayn't we have been coining?
mayn't you have been coining?
mayn't they have been coining?