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 mayn't reef you mayn't reef he mayn't reef we mayn't reef you mayn't reef they mayn't reef
V-ing form
I mayn't be reefing you mayn't be reefing he mayn't be reefing we mayn't be reefing you mayn't be reefing they mayn't be reefing
Perfect
I mayn't have reefed you mayn't have reefed he mayn't have reefed we mayn't have reefed you mayn't have reefed they mayn't have reefed
V-ing perfect
I mayn't have been reefing you mayn't have been reefing he mayn't have been reefing we mayn't have been reefing you mayn't have been reefing they mayn't 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
mayn't I reef? mayn't you reef? mayn't he reef? mayn't we reef? mayn't you reef? mayn't they reef?
V-ing form
mayn't I be reefing? mayn't you be reefing? mayn't he be reefing? mayn't we be reefing? mayn't you be reefing? mayn't they be reefing?
Perfect
mayn't I have reefed? mayn't you have reefed? mayn't he have reefed? mayn't we have reefed? mayn't you have reefed? mayn't they have reefed?
V-ing perfect
mayn't I have been reefing? mayn't you have been reefing? mayn't he have been reefing? mayn't we have been reefing? mayn't you have been reefing? mayn't they have been reefing?