may stale
Regular verb: stale - staled- staled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may stale
you may stale
he may stale
we may stale
you may stale
they may stale 	I may be staling
you may be staling
he may be staling
we may be staling
you may be staling
they may be staling	I may have staled
you may have staled
he 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
he 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 may not stale
you may not stale
he may not stale
we may not stale
you may not stale
they may not stale 	I may not be staling
you may not be staling
he may not be staling
we may not be staling
you may not be staling
they may not be staling	I may not have staled
you may not have staled
he may not have staled
we may not have staled
you may not have staled
they may not have staled	I may not have been staling
you may not have been staling
he may not have been staling
we may not have been staling
you may not have been staling
they may not have been staling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I stale?
may you stale?
may he stale?
may we stale?
may you stale?
may they stale? 	may I be staling?
may you be staling?
may he be staling?
may we be staling?
may you be staling?
may they be staling? 	may I have staled?
may you have staled?
may he 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 he 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 	
may I not stale?
may you not stale?
may he not stale?
may we not stale?
may you not stale?
may they not stale? 	may I not be staling?
may you not be staling?
may he not be staling?
may we not be staling?
may you not be staling?
may they not be staling? 	may I not have staled?
may you not have staled?
may he not have staled?
may we not have staled?
may you not have staled?
may they not have staled? 	may I not have been staling?
may you not have been staling?
may he not have been staling?
may we not have been staling?
may you not have been staling?
may they not have been staling?