may frighten
Regular verb: frighten - frightened- frightened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may frighten
you may frighten
she may frighten
we may frighten
you may frighten
they may frighten 	I may be frightening
you may be frightening
she may be frightening
we may be frightening
you may be frightening
they may be frightening	I may have frightened
you may have frightened
she may have frightened
we may have frightened
you may have frightened
they may have frightened	I may have been frightening
you may have been frightening
she may have been frightening
we may have been frightening
you may have been frightening
they may have been frightening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't frighten
you mayn't frighten
she mayn't frighten
we mayn't frighten
you mayn't frighten
they mayn't frighten 	I mayn't be frightening
you mayn't be frightening
she mayn't be frightening
we mayn't be frightening
you mayn't be frightening
they mayn't be frightening	I mayn't have frightened
you mayn't have frightened
she mayn't have frightened
we mayn't have frightened
you mayn't have frightened
they mayn't have frightened	I mayn't have been frightening
you mayn't have been frightening
she mayn't have been frightening
we mayn't have been frightening
you mayn't have been frightening
they mayn't have been frightening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I frighten?
may you frighten?
may she frighten?
may we frighten?
may you frighten?
may they frighten? 	may I be frightening?
may you be frightening?
may she be frightening?
may we be frightening?
may you be frightening?
may they be frightening? 	may I have frightened?
may you have frightened?
may she have frightened?
may we have frightened?
may you have frightened?
may they have frightened? 	may I have been frightening?
may you have been frightening?
may she have been frightening?
may we have been frightening?
may you have been frightening?
may they have been frightening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I frighten?
mayn't you frighten?
mayn't she frighten?
mayn't we frighten?
mayn't you frighten?
mayn't they frighten? 	mayn't I be frightening?
mayn't you be frightening?
mayn't she be frightening?
mayn't we be frightening?
mayn't you be frightening?
mayn't they be frightening? 	mayn't I have frightened?
mayn't you have frightened?
mayn't she have frightened?
mayn't we have frightened?
mayn't you have frightened?
mayn't they have frightened? 	mayn't I have been frightening?
mayn't you have been frightening?
mayn't she have been frightening?
mayn't we have been frightening?
mayn't you have been frightening?
mayn't they have been frightening?