I may barb you may barb she may barb we may barb you may barb they may barb
V-ing form
I may be barbing you may be barbing she may be barbing we may be barbing you may be barbing they may be barbing
Perfect
I may have barbed you may have barbed she may have barbed we may have barbed you may have barbed they may have barbed
V-ing perfect
I may have been barbing you may have been barbing she may have been barbing we may have been barbing you may have been barbing they may have been barbing
Negation
Simple form
I mayn't barb you mayn't barb she mayn't barb we mayn't barb you mayn't barb they mayn't barb
V-ing form
I mayn't be barbing you mayn't be barbing she mayn't be barbing we mayn't be barbing you mayn't be barbing they mayn't be barbing
Perfect
I mayn't have barbed you mayn't have barbed she mayn't have barbed we mayn't have barbed you mayn't have barbed they mayn't have barbed
V-ing perfect
I mayn't have been barbing you mayn't have been barbing she mayn't have been barbing we mayn't have been barbing you mayn't have been barbing they mayn't have been barbing
Interrogative form
Simple form
may I barb? may you barb? may she barb? may we barb? may you barb? may they barb?
V-ing form
may I be barbing? may you be barbing? may she be barbing? may we be barbing? may you be barbing? may they be barbing?
Perfect
may I have barbed? may you have barbed? may she have barbed? may we have barbed? may you have barbed? may they have barbed?
V-ing perfect
may I have been barbing? may you have been barbing? may she have been barbing? may we have been barbing? may you have been barbing? may they have been barbing?
Interro-negative form
Simple form
mayn't I barb? mayn't you barb? mayn't she barb? mayn't we barb? mayn't you barb? mayn't they barb?
V-ing form
mayn't I be barbing? mayn't you be barbing? mayn't she be barbing? mayn't we be barbing? mayn't you be barbing? mayn't they be barbing?
Perfect
mayn't I have barbed? mayn't you have barbed? mayn't she have barbed? mayn't we have barbed? mayn't you have barbed? mayn't they have barbed?
V-ing perfect
mayn't I have been barbing? mayn't you have been barbing? mayn't she have been barbing? mayn't we have been barbing? mayn't you have been barbing? mayn't they have been barbing?