I may wait you may wait he may wait we may wait you may wait they may wait
V-ing form
I may be waiting you may be waiting he may be waiting we may be waiting you may be waiting they may be waiting
Perfect
I may have waited you may have waited he may have waited we may have waited you may have waited they may have waited
V-ing perfect
I may have been waiting you may have been waiting he may have been waiting we may have been waiting you may have been waiting they may have been waiting
Negation
Simple form
I may not wait you may not wait he may not wait we may not wait you may not wait they may not wait
V-ing form
I may not be waiting you may not be waiting he may not be waiting we may not be waiting you may not be waiting they may not be waiting
Perfect
I may not have waited you may not have waited he may not have waited we may not have waited you may not have waited they may not have waited
V-ing perfect
I may not have been waiting you may not have been waiting he may not have been waiting we may not have been waiting you may not have been waiting they may not have been waiting
Interrogative form
Simple form
may I wait? may you wait? may he wait? may we wait? may you wait? may they wait?
V-ing form
may I be waiting? may you be waiting? may he be waiting? may we be waiting? may you be waiting? may they be waiting?
Perfect
may I have waited? may you have waited? may he have waited? may we have waited? may you have waited? may they have waited?
V-ing perfect
may I have been waiting? may you have been waiting? may he have been waiting? may we have been waiting? may you have been waiting? may they have been waiting?
Interro-negative form
Simple form
may I not wait? may you not wait? may he not wait? may we not wait? may you not wait? may they not wait?
V-ing form
may I not be waiting? may you not be waiting? may he not be waiting? may we not be waiting? may you not be waiting? may they not be waiting?
Perfect
may I not have waited? may you not have waited? may he not have waited? may we not have waited? may you not have waited? may they not have waited?
V-ing perfect
may I not have been waiting? may you not have been waiting? may he not have been waiting? may we not have been waiting? may you not have been waiting? may they not have been waiting?