I may prolong you may prolong she may prolong we may prolong you may prolong they may prolong
V-ing form
I may be prolonging you may be prolonging she may be prolonging we may be prolonging you may be prolonging they may be prolonging
Perfect
I may have prolonged you may have prolonged she may have prolonged we may have prolonged you may have prolonged they may have prolonged
V-ing perfect
I may have been prolonging you may have been prolonging she may have been prolonging we may have been prolonging you may have been prolonging they may have been prolonging
Negation
Simple form
I may not prolong you may not prolong she may not prolong we may not prolong you may not prolong they may not prolong
V-ing form
I may not be prolonging you may not be prolonging she may not be prolonging we may not be prolonging you may not be prolonging they may not be prolonging
Perfect
I may not have prolonged you may not have prolonged she may not have prolonged we may not have prolonged you may not have prolonged they may not have prolonged
V-ing perfect
I may not have been prolonging you may not have been prolonging she may not have been prolonging we may not have been prolonging you may not have been prolonging they may not have been prolonging
Interrogative form
Simple form
may I prolong? may you prolong? may she prolong? may we prolong? may you prolong? may they prolong?
V-ing form
may I be prolonging? may you be prolonging? may she be prolonging? may we be prolonging? may you be prolonging? may they be prolonging?
Perfect
may I have prolonged? may you have prolonged? may she have prolonged? may we have prolonged? may you have prolonged? may they have prolonged?
V-ing perfect
may I have been prolonging? may you have been prolonging? may she have been prolonging? may we have been prolonging? may you have been prolonging? may they have been prolonging?
Interro-negative form
Simple form
may I not prolong? may you not prolong? may she not prolong? may we not prolong? may you not prolong? may they not prolong?
V-ing form
may I not be prolonging? may you not be prolonging? may she not be prolonging? may we not be prolonging? may you not be prolonging? may they not be prolonging?
Perfect
may I not have prolonged? may you not have prolonged? may she not have prolonged? may we not have prolonged? may you not have prolonged? may they not have prolonged?
V-ing perfect
may I not have been prolonging? may you not have been prolonging? may she not have been prolonging? may we not have been prolonging? may you not have been prolonging? may they not have been prolonging?