I may reef you may reef he may reef we may reef you may reef they may reef
V-ing form
I may be reefing you may be reefing he may be reefing we may be reefing you may be reefing they may be reefing
Perfect
I may have reefed you may have reefed he may have reefed we may have reefed you may have reefed they may have reefed
V-ing perfect
I may have been reefing you may have been reefing he may have been reefing we may have been reefing you may have been reefing they may have been reefing
Negation
Simple form
I may not reef you may not reef he may not reef we may not reef you may not reef they may not reef
V-ing form
I may not be reefing you may not be reefing he may not be reefing we may not be reefing you may not be reefing they may not be reefing
Perfect
I may not have reefed you may not have reefed he may not have reefed we may not have reefed you may not have reefed they may not have reefed
V-ing perfect
I may not have been reefing you may not have been reefing he may not have been reefing we may not have been reefing you may not have been reefing they may not have been reefing
Interrogative form
Simple form
may I reef? may you reef? may he reef? may we reef? may you reef? may they reef?
V-ing form
may I be reefing? may you be reefing? may he be reefing? may we be reefing? may you be reefing? may they be reefing?
Perfect
may I have reefed? may you have reefed? may he have reefed? may we have reefed? may you have reefed? may they have reefed?
V-ing perfect
may I have been reefing? may you have been reefing? may he have been reefing? may we have been reefing? may you have been reefing? may they have been reefing?
Interro-negative form
Simple form
may I not reef? may you not reef? may he not reef? may we not reef? may you not reef? may they not reef?
V-ing form
may I not be reefing? may you not be reefing? may he not be reefing? may we not be reefing? may you not be reefing? may they not be reefing?
Perfect
may I not have reefed? may you not have reefed? may he not have reefed? may we not have reefed? may you not have reefed? may they not have reefed?
V-ing perfect
may I not have been reefing? may you not have been reefing? may he not have been reefing? may we not have been reefing? may you not have been reefing? may they not have been reefing?