I may barter you may barter he may barter we may barter you may barter they may barter
V-ing form
I may be bartering you may be bartering he may be bartering we may be bartering you may be bartering they may be bartering
Perfect
I may have bartered you may have bartered he may have bartered we may have bartered you may have bartered they may have bartered
V-ing perfect
I may have been bartering you may have been bartering he may have been bartering we may have been bartering you may have been bartering they may have been bartering
Negation
Simple form
I may not barter you may not barter he may not barter we may not barter you may not barter they may not barter
V-ing form
I may not be bartering you may not be bartering he may not be bartering we may not be bartering you may not be bartering they may not be bartering
Perfect
I may not have bartered you may not have bartered he may not have bartered we may not have bartered you may not have bartered they may not have bartered
V-ing perfect
I may not have been bartering you may not have been bartering he may not have been bartering we may not have been bartering you may not have been bartering they may not have been bartering
Interrogative form
Simple form
may I barter? may you barter? may he barter? may we barter? may you barter? may they barter?
V-ing form
may I be bartering? may you be bartering? may he be bartering? may we be bartering? may you be bartering? may they be bartering?
Perfect
may I have bartered? may you have bartered? may he have bartered? may we have bartered? may you have bartered? may they have bartered?
V-ing perfect
may I have been bartering? may you have been bartering? may he have been bartering? may we have been bartering? may you have been bartering? may they have been bartering?
Interro-negative form
Simple form
may I not barter? may you not barter? may he not barter? may we not barter? may you not barter? may they not barter?
V-ing form
may I not be bartering? may you not be bartering? may he not be bartering? may we not be bartering? may you not be bartering? may they not be bartering?
Perfect
may I not have bartered? may you not have bartered? may he not have bartered? may we not have bartered? may you not have bartered? may they not have bartered?
V-ing perfect
may I not have been bartering? may you not have been bartering? may he not have been bartering? may we not have been bartering? may you not have been bartering? may they not have been bartering?