may strain
Regular verb: strain - strained- strained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may strain
you may strain
he may strain
we may strain
you may strain
they may strain 	I may be straining
you may be straining
he may be straining
we may be straining
you may be straining
they may be straining	I may have strained
you may have strained
he may have strained
we may have strained
you may have strained
they may have strained	I may have been straining
you may have been straining
he may have been straining
we may have been straining
you may have been straining
they may have been straining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't strain
you mayn't strain
he mayn't strain
we mayn't strain
you mayn't strain
they mayn't strain 	I mayn't be straining
you mayn't be straining
he mayn't be straining
we mayn't be straining
you mayn't be straining
they mayn't be straining	I mayn't have strained
you mayn't have strained
he mayn't have strained
we mayn't have strained
you mayn't have strained
they mayn't have strained	I mayn't have been straining
you mayn't have been straining
he mayn't have been straining
we mayn't have been straining
you mayn't have been straining
they mayn't have been straining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I strain?
may you strain?
may he strain?
may we strain?
may you strain?
may they strain? 	may I be straining?
may you be straining?
may he be straining?
may we be straining?
may you be straining?
may they be straining? 	may I have strained?
may you have strained?
may he have strained?
may we have strained?
may you have strained?
may they have strained? 	may I have been straining?
may you have been straining?
may he have been straining?
may we have been straining?
may you have been straining?
may they have been straining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I strain?
mayn't you strain?
mayn't he strain?
mayn't we strain?
mayn't you strain?
mayn't they strain? 	mayn't I be straining?
mayn't you be straining?
mayn't he be straining?
mayn't we be straining?
mayn't you be straining?
mayn't they be straining? 	mayn't I have strained?
mayn't you have strained?
mayn't he have strained?
mayn't we have strained?
mayn't you have strained?
mayn't they have strained? 	mayn't I have been straining?
mayn't you have been straining?
mayn't he have been straining?
mayn't we have been straining?
mayn't you have been straining?
mayn't they have been straining?