may elapse
Regular verb: elapse - elapsed- elapsed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may elapse
you may elapse
she may elapse
we may elapse
you may elapse
they may elapse 	I may be elapsing
you may be elapsing
she may be elapsing
we may be elapsing
you may be elapsing
they may be elapsing	I may have elapsed
you may have elapsed
she may have elapsed
we may have elapsed
you may have elapsed
they may have elapsed	I may have been elapsing
you may have been elapsing
she may have been elapsing
we may have been elapsing
you may have been elapsing
they may have been elapsing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't elapse
you mayn't elapse
she mayn't elapse
we mayn't elapse
you mayn't elapse
they mayn't elapse 	I mayn't be elapsing
you mayn't be elapsing
she mayn't be elapsing
we mayn't be elapsing
you mayn't be elapsing
they mayn't be elapsing	I mayn't have elapsed
you mayn't have elapsed
she mayn't have elapsed
we mayn't have elapsed
you mayn't have elapsed
they mayn't have elapsed	I mayn't have been elapsing
you mayn't have been elapsing
she mayn't have been elapsing
we mayn't have been elapsing
you mayn't have been elapsing
they mayn't have been elapsing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I elapse?
may you elapse?
may she elapse?
may we elapse?
may you elapse?
may they elapse? 	may I be elapsing?
may you be elapsing?
may she be elapsing?
may we be elapsing?
may you be elapsing?
may they be elapsing? 	may I have elapsed?
may you have elapsed?
may she have elapsed?
may we have elapsed?
may you have elapsed?
may they have elapsed? 	may I have been elapsing?
may you have been elapsing?
may she have been elapsing?
may we have been elapsing?
may you have been elapsing?
may they have been elapsing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I elapse?
mayn't you elapse?
mayn't she elapse?
mayn't we elapse?
mayn't you elapse?
mayn't they elapse? 	mayn't I be elapsing?
mayn't you be elapsing?
mayn't she be elapsing?
mayn't we be elapsing?
mayn't you be elapsing?
mayn't they be elapsing? 	mayn't I have elapsed?
mayn't you have elapsed?
mayn't she have elapsed?
mayn't we have elapsed?
mayn't you have elapsed?
mayn't they have elapsed? 	mayn't I have been elapsing?
mayn't you have been elapsing?
mayn't she have been elapsing?
mayn't we have been elapsing?
mayn't you have been elapsing?
mayn't they have been elapsing?