may stale
Regular verb: stale - staled- staled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may stale
you may stale
she may stale
we may stale
you may stale
they may stale 	I may be staling
you may be staling
she may be staling
we may be staling
you may be staling
they may be staling	I may have staled
you may have staled
she may have staled
we may have staled
you may have staled
they may have staled	I may have been staling
you may have been staling
she may have been staling
we may have been staling
you may have been staling
they may have been staling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't stale
you mayn't stale
she mayn't stale
we mayn't stale
you mayn't stale
they mayn't stale 	I mayn't be staling
you mayn't be staling
she mayn't be staling
we mayn't be staling
you mayn't be staling
they mayn't be staling	I mayn't have staled
you mayn't have staled
she mayn't have staled
we mayn't have staled
you mayn't have staled
they mayn't have staled	I mayn't have been staling
you mayn't have been staling
she mayn't have been staling
we mayn't have been staling
you mayn't have been staling
they mayn't have been staling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I stale?
may you stale?
may she stale?
may we stale?
may you stale?
may they stale? 	may I be staling?
may you be staling?
may she be staling?
may we be staling?
may you be staling?
may they be staling? 	may I have staled?
may you have staled?
may she have staled?
may we have staled?
may you have staled?
may they have staled? 	may I have been staling?
may you have been staling?
may she have been staling?
may we have been staling?
may you have been staling?
may they have been staling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I stale?
mayn't you stale?
mayn't she stale?
mayn't we stale?
mayn't you stale?
mayn't they stale? 	mayn't I be staling?
mayn't you be staling?
mayn't she be staling?
mayn't we be staling?
mayn't you be staling?
mayn't they be staling? 	mayn't I have staled?
mayn't you have staled?
mayn't she have staled?
mayn't we have staled?
mayn't you have staled?
mayn't they have staled? 	mayn't I have been staling?
mayn't you have been staling?
mayn't she have been staling?
mayn't we have been staling?
mayn't you have been staling?
mayn't they have been staling?