may understock
Regular verb: understock - understocked- understocked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may understock
you may understock
he may understock
we may understock
you may understock
they may understock 	I may be understocking
you may be understocking
he may be understocking
we may be understocking
you may be understocking
they may be understocking	I may have understocked
you may have understocked
he may have understocked
we may have understocked
you may have understocked
they may have understocked	I may have been understocking
you may have been understocking
he may have been understocking
we may have been understocking
you may have been understocking
they may have been understocking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't understock
you mayn't understock
he mayn't understock
we mayn't understock
you mayn't understock
they mayn't understock 	I mayn't be understocking
you mayn't be understocking
he mayn't be understocking
we mayn't be understocking
you mayn't be understocking
they mayn't be understocking	I mayn't have understocked
you mayn't have understocked
he mayn't have understocked
we mayn't have understocked
you mayn't have understocked
they mayn't have understocked	I mayn't have been understocking
you mayn't have been understocking
he mayn't have been understocking
we mayn't have been understocking
you mayn't have been understocking
they mayn't have been understocking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I understock?
may you understock?
may he understock?
may we understock?
may you understock?
may they understock? 	may I be understocking?
may you be understocking?
may he be understocking?
may we be understocking?
may you be understocking?
may they be understocking? 	may I have understocked?
may you have understocked?
may he have understocked?
may we have understocked?
may you have understocked?
may they have understocked? 	may I have been understocking?
may you have been understocking?
may he have been understocking?
may we have been understocking?
may you have been understocking?
may they have been understocking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I understock?
mayn't you understock?
mayn't he understock?
mayn't we understock?
mayn't you understock?
mayn't they understock? 	mayn't I be understocking?
mayn't you be understocking?
mayn't he be understocking?
mayn't we be understocking?
mayn't you be understocking?
mayn't they be understocking? 	mayn't I have understocked?
mayn't you have understocked?
mayn't he have understocked?
mayn't we have understocked?
mayn't you have understocked?
mayn't they have understocked? 	mayn't I have been understocking?
mayn't you have been understocking?
mayn't he have been understocking?
mayn't we have been understocking?
mayn't you have been understocking?
mayn't they have been understocking?