may intergrade
Regular verb: intergrade - intergraded- intergraded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may intergrade
you may intergrade
she may intergrade
we may intergrade
you may intergrade
they may intergrade 	I may be intergrading
you may be intergrading
she may be intergrading
we may be intergrading
you may be intergrading
they may be intergrading	I may have intergraded
you may have intergraded
she may have intergraded
we may have intergraded
you may have intergraded
they may have intergraded	I may have been intergrading
you may have been intergrading
she may have been intergrading
we may have been intergrading
you may have been intergrading
they may have been intergrading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't intergrade
you mayn't intergrade
she mayn't intergrade
we mayn't intergrade
you mayn't intergrade
they mayn't intergrade 	I mayn't be intergrading
you mayn't be intergrading
she mayn't be intergrading
we mayn't be intergrading
you mayn't be intergrading
they mayn't be intergrading	I mayn't have intergraded
you mayn't have intergraded
she mayn't have intergraded
we mayn't have intergraded
you mayn't have intergraded
they mayn't have intergraded	I mayn't have been intergrading
you mayn't have been intergrading
she mayn't have been intergrading
we mayn't have been intergrading
you mayn't have been intergrading
they mayn't have been intergrading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I intergrade?
may you intergrade?
may she intergrade?
may we intergrade?
may you intergrade?
may they intergrade? 	may I be intergrading?
may you be intergrading?
may she be intergrading?
may we be intergrading?
may you be intergrading?
may they be intergrading? 	may I have intergraded?
may you have intergraded?
may she have intergraded?
may we have intergraded?
may you have intergraded?
may they have intergraded? 	may I have been intergrading?
may you have been intergrading?
may she have been intergrading?
may we have been intergrading?
may you have been intergrading?
may they have been intergrading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I intergrade?
mayn't you intergrade?
mayn't she intergrade?
mayn't we intergrade?
mayn't you intergrade?
mayn't they intergrade? 	mayn't I be intergrading?
mayn't you be intergrading?
mayn't she be intergrading?
mayn't we be intergrading?
mayn't you be intergrading?
mayn't they be intergrading? 	mayn't I have intergraded?
mayn't you have intergraded?
mayn't she have intergraded?
mayn't we have intergraded?
mayn't you have intergraded?
mayn't they have intergraded? 	mayn't I have been intergrading?
mayn't you have been intergrading?
mayn't she have been intergrading?
mayn't we have been intergrading?
mayn't you have been intergrading?
mayn't they have been intergrading?