may pile
Regular verb: pile - piled- piled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may pile
you may pile
she may pile
we may pile
you may pile
they may pile 	I may be piling
you may be piling
she may be piling
we may be piling
you may be piling
they may be piling	I may have piled
you may have piled
she may have piled
we may have piled
you may have piled
they may have piled	I may have been piling
you may have been piling
she may have been piling
we may have been piling
you may have been piling
they may have been piling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't pile
you mayn't pile
she mayn't pile
we mayn't pile
you mayn't pile
they mayn't pile 	I mayn't be piling
you mayn't be piling
she mayn't be piling
we mayn't be piling
you mayn't be piling
they mayn't be piling	I mayn't have piled
you mayn't have piled
she mayn't have piled
we mayn't have piled
you mayn't have piled
they mayn't have piled	I mayn't have been piling
you mayn't have been piling
she mayn't have been piling
we mayn't have been piling
you mayn't have been piling
they mayn't have been piling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I pile?
may you pile?
may she pile?
may we pile?
may you pile?
may they pile? 	may I be piling?
may you be piling?
may she be piling?
may we be piling?
may you be piling?
may they be piling? 	may I have piled?
may you have piled?
may she have piled?
may we have piled?
may you have piled?
may they have piled? 	may I have been piling?
may you have been piling?
may she have been piling?
may we have been piling?
may you have been piling?
may they have been piling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I pile?
mayn't you pile?
mayn't she pile?
mayn't we pile?
mayn't you pile?
mayn't they pile? 	mayn't I be piling?
mayn't you be piling?
mayn't she be piling?
mayn't we be piling?
mayn't you be piling?
mayn't they be piling? 	mayn't I have piled?
mayn't you have piled?
mayn't she have piled?
mayn't we have piled?
mayn't you have piled?
mayn't they have piled? 	mayn't I have been piling?
mayn't you have been piling?
mayn't she have been piling?
mayn't we have been piling?
mayn't you have been piling?
mayn't they have been piling?