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 may not barb you may not barb she may not barb we may not barb you may not barb they may not barb
V-ing form
I may not be barbing you may not be barbing she may not be barbing we may not be barbing you may not be barbing they may not be barbing
Perfect
I may not have barbed you may not have barbed she may not have barbed we may not have barbed you may not have barbed they may not have barbed
V-ing perfect
I may not have been barbing you may not have been barbing she may not have been barbing we may not have been barbing you may not have been barbing they may not 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
may I not barb? may you not barb? may she not barb? may we not barb? may you not barb? may they not barb?
V-ing form
may I not be barbing? may you not be barbing? may she not be barbing? may we not be barbing? may you not be barbing? may they not be barbing?
Perfect
may I not have barbed? may you not have barbed? may she not have barbed? may we not have barbed? may you not have barbed? may they not have barbed?
V-ing perfect
may I not have been barbing? may you not have been barbing? may she not have been barbing? may we not have been barbing? may you not have been barbing? may they not have been barbing?