I may exchange you may exchange she may exchange we may exchange you may exchange they may exchange
V-ing form
I may be exchanging you may be exchanging she may be exchanging we may be exchanging you may be exchanging they may be exchanging
Perfect
I may have exchanged you may have exchanged she may have exchanged we may have exchanged you may have exchanged they may have exchanged
V-ing perfect
I may have been exchanging you may have been exchanging she may have been exchanging we may have been exchanging you may have been exchanging they may have been exchanging
Negation
Simple form
I may not exchange you may not exchange she may not exchange we may not exchange you may not exchange they may not exchange
V-ing form
I may not be exchanging you may not be exchanging she may not be exchanging we may not be exchanging you may not be exchanging they may not be exchanging
Perfect
I may not have exchanged you may not have exchanged she may not have exchanged we may not have exchanged you may not have exchanged they may not have exchanged
V-ing perfect
I may not have been exchanging you may not have been exchanging she may not have been exchanging we may not have been exchanging you may not have been exchanging they may not have been exchanging
Interrogative form
Simple form
may I exchange? may you exchange? may she exchange? may we exchange? may you exchange? may they exchange?
V-ing form
may I be exchanging? may you be exchanging? may she be exchanging? may we be exchanging? may you be exchanging? may they be exchanging?
Perfect
may I have exchanged? may you have exchanged? may she have exchanged? may we have exchanged? may you have exchanged? may they have exchanged?
V-ing perfect
may I have been exchanging? may you have been exchanging? may she have been exchanging? may we have been exchanging? may you have been exchanging? may they have been exchanging?
Interro-negative form
Simple form
may I not exchange? may you not exchange? may she not exchange? may we not exchange? may you not exchange? may they not exchange?
V-ing form
may I not be exchanging? may you not be exchanging? may she not be exchanging? may we not be exchanging? may you not be exchanging? may they not be exchanging?
Perfect
may I not have exchanged? may you not have exchanged? may she not have exchanged? may we not have exchanged? may you not have exchanged? may they not have exchanged?
V-ing perfect
may I not have been exchanging? may you not have been exchanging? may she not have been exchanging? may we not have been exchanging? may you not have been exchanging? may they not have been exchanging?