may impale
Regular verb: impale - impaled- impaled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may impale
you may impale
he may impale
we may impale
you may impale
they may impale 	I may be impaling
you may be impaling
he may be impaling
we may be impaling
you may be impaling
they may be impaling	I may have impaled
you may have impaled
he may have impaled
we may have impaled
you may have impaled
they may have impaled	I may have been impaling
you may have been impaling
he may have been impaling
we may have been impaling
you may have been impaling
they may have been impaling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't impale
you mayn't impale
he mayn't impale
we mayn't impale
you mayn't impale
they mayn't impale 	I mayn't be impaling
you mayn't be impaling
he mayn't be impaling
we mayn't be impaling
you mayn't be impaling
they mayn't be impaling	I mayn't have impaled
you mayn't have impaled
he mayn't have impaled
we mayn't have impaled
you mayn't have impaled
they mayn't have impaled	I mayn't have been impaling
you mayn't have been impaling
he mayn't have been impaling
we mayn't have been impaling
you mayn't have been impaling
they mayn't have been impaling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I impale?
may you impale?
may he impale?
may we impale?
may you impale?
may they impale? 	may I be impaling?
may you be impaling?
may he be impaling?
may we be impaling?
may you be impaling?
may they be impaling? 	may I have impaled?
may you have impaled?
may he have impaled?
may we have impaled?
may you have impaled?
may they have impaled? 	may I have been impaling?
may you have been impaling?
may he have been impaling?
may we have been impaling?
may you have been impaling?
may they have been impaling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I impale?
mayn't you impale?
mayn't he impale?
mayn't we impale?
mayn't you impale?
mayn't they impale? 	mayn't I be impaling?
mayn't you be impaling?
mayn't he be impaling?
mayn't we be impaling?
mayn't you be impaling?
mayn't they be impaling? 	mayn't I have impaled?
mayn't you have impaled?
mayn't he have impaled?
mayn't we have impaled?
mayn't you have impaled?
mayn't they have impaled? 	mayn't I have been impaling?
mayn't you have been impaling?
mayn't he have been impaling?
mayn't we have been impaling?
mayn't you have been impaling?
mayn't they have been impaling?