I may balloon you may balloon she may balloon we may balloon you may balloon they may balloon
V-ing form
I may be ballooning you may be ballooning she may be ballooning we may be ballooning you may be ballooning they may be ballooning
Perfect
I may have ballooned you may have ballooned she may have ballooned we may have ballooned you may have ballooned they may have ballooned
V-ing perfect
I may have been ballooning you may have been ballooning she may have been ballooning we may have been ballooning you may have been ballooning they may have been ballooning
Negation
Simple form
I may not balloon you may not balloon she may not balloon we may not balloon you may not balloon they may not balloon
V-ing form
I may not be ballooning you may not be ballooning she may not be ballooning we may not be ballooning you may not be ballooning they may not be ballooning
Perfect
I may not have ballooned you may not have ballooned she may not have ballooned we may not have ballooned you may not have ballooned they may not have ballooned
V-ing perfect
I may not have been ballooning you may not have been ballooning she may not have been ballooning we may not have been ballooning you may not have been ballooning they may not have been ballooning
Interrogative form
Simple form
may I balloon? may you balloon? may she balloon? may we balloon? may you balloon? may they balloon?
V-ing form
may I be ballooning? may you be ballooning? may she be ballooning? may we be ballooning? may you be ballooning? may they be ballooning?
Perfect
may I have ballooned? may you have ballooned? may she have ballooned? may we have ballooned? may you have ballooned? may they have ballooned?
V-ing perfect
may I have been ballooning? may you have been ballooning? may she have been ballooning? may we have been ballooning? may you have been ballooning? may they have been ballooning?
Interro-negative form
Simple form
may I not balloon? may you not balloon? may she not balloon? may we not balloon? may you not balloon? may they not balloon?
V-ing form
may I not be ballooning? may you not be ballooning? may she not be ballooning? may we not be ballooning? may you not be ballooning? may they not be ballooning?
Perfect
may I not have ballooned? may you not have ballooned? may she not have ballooned? may we not have ballooned? may you not have ballooned? may they not have ballooned?
V-ing perfect
may I not have been ballooning? may you not have been ballooning? may she not have been ballooning? may we not have been ballooning? may you not have been ballooning? may they not have been ballooning?