may ump
Regular verb: ump - umped- umped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may ump
you may ump
she may ump
we may ump
you may ump
they may ump 	I may be umping
you may be umping
she may be umping
we may be umping
you may be umping
they may be umping	I may have umped
you may have umped
she may have umped
we may have umped
you may have umped
they may have umped	I may have been umping
you may have been umping
she may have been umping
we may have been umping
you may have been umping
they may have been umping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't ump
you mayn't ump
she mayn't ump
we mayn't ump
you mayn't ump
they mayn't ump 	I mayn't be umping
you mayn't be umping
she mayn't be umping
we mayn't be umping
you mayn't be umping
they mayn't be umping	I mayn't have umped
you mayn't have umped
she mayn't have umped
we mayn't have umped
you mayn't have umped
they mayn't have umped	I mayn't have been umping
you mayn't have been umping
she mayn't have been umping
we mayn't have been umping
you mayn't have been umping
they mayn't have been umping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I ump?
may you ump?
may she ump?
may we ump?
may you ump?
may they ump? 	may I be umping?
may you be umping?
may she be umping?
may we be umping?
may you be umping?
may they be umping? 	may I have umped?
may you have umped?
may she have umped?
may we have umped?
may you have umped?
may they have umped? 	may I have been umping?
may you have been umping?
may she have been umping?
may we have been umping?
may you have been umping?
may they have been umping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I ump?
mayn't you ump?
mayn't she ump?
mayn't we ump?
mayn't you ump?
mayn't they ump? 	mayn't I be umping?
mayn't you be umping?
mayn't she be umping?
mayn't we be umping?
mayn't you be umping?
mayn't they be umping? 	mayn't I have umped?
mayn't you have umped?
mayn't she have umped?
mayn't we have umped?
mayn't you have umped?
mayn't they have umped? 	mayn't I have been umping?
mayn't you have been umping?
mayn't she have been umping?
mayn't we have been umping?
mayn't you have been umping?
mayn't they have been umping?