may stockpile
Regular verb: stockpile - stockpiled- stockpiled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may stockpile
you may stockpile
he may stockpile
we may stockpile
you may stockpile
they may stockpile 	I may be stockpiling
you may be stockpiling
he may be stockpiling
we may be stockpiling
you may be stockpiling
they may be stockpiling	I may have stockpiled
you may have stockpiled
he may have stockpiled
we may have stockpiled
you may have stockpiled
they may have stockpiled	I may have been stockpiling
you may have been stockpiling
he may have been stockpiling
we may have been stockpiling
you may have been stockpiling
they may have been stockpiling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't stockpile
you mayn't stockpile
he mayn't stockpile
we mayn't stockpile
you mayn't stockpile
they mayn't stockpile 	I mayn't be stockpiling
you mayn't be stockpiling
he mayn't be stockpiling
we mayn't be stockpiling
you mayn't be stockpiling
they mayn't be stockpiling	I mayn't have stockpiled
you mayn't have stockpiled
he mayn't have stockpiled
we mayn't have stockpiled
you mayn't have stockpiled
they mayn't have stockpiled	I mayn't have been stockpiling
you mayn't have been stockpiling
he mayn't have been stockpiling
we mayn't have been stockpiling
you mayn't have been stockpiling
they mayn't have been stockpiling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I stockpile?
may you stockpile?
may he stockpile?
may we stockpile?
may you stockpile?
may they stockpile? 	may I be stockpiling?
may you be stockpiling?
may he be stockpiling?
may we be stockpiling?
may you be stockpiling?
may they be stockpiling? 	may I have stockpiled?
may you have stockpiled?
may he have stockpiled?
may we have stockpiled?
may you have stockpiled?
may they have stockpiled? 	may I have been stockpiling?
may you have been stockpiling?
may he have been stockpiling?
may we have been stockpiling?
may you have been stockpiling?
may they have been stockpiling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I stockpile?
mayn't you stockpile?
mayn't he stockpile?
mayn't we stockpile?
mayn't you stockpile?
mayn't they stockpile? 	mayn't I be stockpiling?
mayn't you be stockpiling?
mayn't he be stockpiling?
mayn't we be stockpiling?
mayn't you be stockpiling?
mayn't they be stockpiling? 	mayn't I have stockpiled?
mayn't you have stockpiled?
mayn't he have stockpiled?
mayn't we have stockpiled?
mayn't you have stockpiled?
mayn't they have stockpiled? 	mayn't I have been stockpiling?
mayn't you have been stockpiling?
mayn't he have been stockpiling?
mayn't we have been stockpiling?
mayn't you have been stockpiling?
mayn't they have been stockpiling?