Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may curb curb you may curb curb he may curb curb we may curb curb you may curb curb they may curb curb
V-ing form
I may be curb curbing you may be curb curbing he may be curb curbing we may be curb curbing you may be curb curbing they may be curb curbing
Perfect
I may have curb curbed you may have curb curbed he may have curb curbed we may have curb curbed you may have curb curbed they may have curb curbed
V-ing perfect
I may have been curb curbing you may have been curb curbing he may have been curb curbing we may have been curb curbing you may have been curb curbing they may have been curb curbing
Negation
Simple form
I mayn't curb curb you mayn't curb curb he mayn't curb curb we mayn't curb curb you mayn't curb curb they mayn't curb curb
V-ing form
I mayn't be curb curbing you mayn't be curb curbing he mayn't be curb curbing we mayn't be curb curbing you mayn't be curb curbing they mayn't be curb curbing
Perfect
I mayn't have curb curbed you mayn't have curb curbed he mayn't have curb curbed we mayn't have curb curbed you mayn't have curb curbed they mayn't have curb curbed
V-ing perfect
I mayn't have been curb curbing you mayn't have been curb curbing he mayn't have been curb curbing we mayn't have been curb curbing you mayn't have been curb curbing they mayn't have been curb curbing
Interrogative form
Simple form
may I curb curb? may you curb curb? may he curb curb? may we curb curb? may you curb curb? may they curb curb?
V-ing form
may I be curb curbing? may you be curb curbing? may he be curb curbing? may we be curb curbing? may you be curb curbing? may they be curb curbing?
Perfect
may I have curb curbed? may you have curb curbed? may he have curb curbed? may we have curb curbed? may you have curb curbed? may they have curb curbed?
V-ing perfect
may I have been curb curbing? may you have been curb curbing? may he have been curb curbing? may we have been curb curbing? may you have been curb curbing? may they have been curb curbing?
Interro-negative form
Simple form
mayn't I curb curb? mayn't you curb curb? mayn't he curb curb? mayn't we curb curb? mayn't you curb curb? mayn't they curb curb?
V-ing form
mayn't I be curb curbing? mayn't you be curb curbing? mayn't he be curb curbing? mayn't we be curb curbing? mayn't you be curb curbing? mayn't they be curb curbing?
Perfect
mayn't I have curb curbed? mayn't you have curb curbed? mayn't he have curb curbed? mayn't we have curb curbed? mayn't you have curb curbed? mayn't they have curb curbed?
V-ing perfect
mayn't I have been curb curbing? mayn't you have been curb curbing? mayn't he have been curb curbing? mayn't we have been curb curbing? mayn't you have been curb curbing? mayn't they have been curb curbing?