may sprain
Regular verb: sprain - sprained- sprained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may sprain
you may sprain
he may sprain
we may sprain
you may sprain
they may sprain 	I may be spraining
you may be spraining
he may be spraining
we may be spraining
you may be spraining
they may be spraining	I may have sprained
you may have sprained
he may have sprained
we may have sprained
you may have sprained
they may have sprained	I may have been spraining
you may have been spraining
he may have been spraining
we may have been spraining
you may have been spraining
they may have been spraining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't sprain
you mayn't sprain
he mayn't sprain
we mayn't sprain
you mayn't sprain
they mayn't sprain 	I mayn't be spraining
you mayn't be spraining
he mayn't be spraining
we mayn't be spraining
you mayn't be spraining
they mayn't be spraining	I mayn't have sprained
you mayn't have sprained
he mayn't have sprained
we mayn't have sprained
you mayn't have sprained
they mayn't have sprained	I mayn't have been spraining
you mayn't have been spraining
he mayn't have been spraining
we mayn't have been spraining
you mayn't have been spraining
they mayn't have been spraining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I sprain?
may you sprain?
may he sprain?
may we sprain?
may you sprain?
may they sprain? 	may I be spraining?
may you be spraining?
may he be spraining?
may we be spraining?
may you be spraining?
may they be spraining? 	may I have sprained?
may you have sprained?
may he have sprained?
may we have sprained?
may you have sprained?
may they have sprained? 	may I have been spraining?
may you have been spraining?
may he have been spraining?
may we have been spraining?
may you have been spraining?
may they have been spraining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I sprain?
mayn't you sprain?
mayn't he sprain?
mayn't we sprain?
mayn't you sprain?
mayn't they sprain? 	mayn't I be spraining?
mayn't you be spraining?
mayn't he be spraining?
mayn't we be spraining?
mayn't you be spraining?
mayn't they be spraining? 	mayn't I have sprained?
mayn't you have sprained?
mayn't he have sprained?
mayn't we have sprained?
mayn't you have sprained?
mayn't they have sprained? 	mayn't I have been spraining?
mayn't you have been spraining?
mayn't he have been spraining?
mayn't we have been spraining?
mayn't you have been spraining?
mayn't they have been spraining?