may stone
Regular verb: stone - stoned- stoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may stone
you may stone
he may stone
we may stone
you may stone
they may stone 	I may be stoning
you may be stoning
he may be stoning
we may be stoning
you may be stoning
they may be stoning	I may have stoned
you may have stoned
he may have stoned
we may have stoned
you may have stoned
they may have stoned	I may have been stoning
you may have been stoning
he may have been stoning
we may have been stoning
you may have been stoning
they may have been stoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't stone
you mayn't stone
he mayn't stone
we mayn't stone
you mayn't stone
they mayn't stone 	I mayn't be stoning
you mayn't be stoning
he mayn't be stoning
we mayn't be stoning
you mayn't be stoning
they mayn't be stoning	I mayn't have stoned
you mayn't have stoned
he mayn't have stoned
we mayn't have stoned
you mayn't have stoned
they mayn't have stoned	I mayn't have been stoning
you mayn't have been stoning
he mayn't have been stoning
we mayn't have been stoning
you mayn't have been stoning
they mayn't have been stoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I stone?
may you stone?
may he stone?
may we stone?
may you stone?
may they stone? 	may I be stoning?
may you be stoning?
may he be stoning?
may we be stoning?
may you be stoning?
may they be stoning? 	may I have stoned?
may you have stoned?
may he have stoned?
may we have stoned?
may you have stoned?
may they have stoned? 	may I have been stoning?
may you have been stoning?
may he have been stoning?
may we have been stoning?
may you have been stoning?
may they have been stoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I stone?
mayn't you stone?
mayn't he stone?
mayn't we stone?
mayn't you stone?
mayn't they stone? 	mayn't I be stoning?
mayn't you be stoning?
mayn't he be stoning?
mayn't we be stoning?
mayn't you be stoning?
mayn't they be stoning? 	mayn't I have stoned?
mayn't you have stoned?
mayn't he have stoned?
mayn't we have stoned?
mayn't you have stoned?
mayn't they have stoned? 	mayn't I have been stoning?
mayn't you have been stoning?
mayn't he have been stoning?
mayn't we have been stoning?
mayn't you have been stoning?
mayn't they have been stoning?