I may gangrene you may gangrene he may gangrene we may gangrene you may gangrene they may gangrene
V-ing form
I may be gangrening you may be gangrening he may be gangrening we may be gangrening you may be gangrening they may be gangrening
Perfect
I may have gangrened you may have gangrened he may have gangrened we may have gangrened you may have gangrened they may have gangrened
V-ing perfect
I may have been gangrening you may have been gangrening he may have been gangrening we may have been gangrening you may have been gangrening they may have been gangrening
Negation
Simple form
I mayn't gangrene you mayn't gangrene he mayn't gangrene we mayn't gangrene you mayn't gangrene they mayn't gangrene
V-ing form
I mayn't be gangrening you mayn't be gangrening he mayn't be gangrening we mayn't be gangrening you mayn't be gangrening they mayn't be gangrening
Perfect
I mayn't have gangrened you mayn't have gangrened he mayn't have gangrened we mayn't have gangrened you mayn't have gangrened they mayn't have gangrened
V-ing perfect
I mayn't have been gangrening you mayn't have been gangrening he mayn't have been gangrening we mayn't have been gangrening you mayn't have been gangrening they mayn't have been gangrening
Interrogative form
Simple form
may I gangrene? may you gangrene? may he gangrene? may we gangrene? may you gangrene? may they gangrene?
V-ing form
may I be gangrening? may you be gangrening? may he be gangrening? may we be gangrening? may you be gangrening? may they be gangrening?
Perfect
may I have gangrened? may you have gangrened? may he have gangrened? may we have gangrened? may you have gangrened? may they have gangrened?
V-ing perfect
may I have been gangrening? may you have been gangrening? may he have been gangrening? may we have been gangrening? may you have been gangrening? may they have been gangrening?
Interro-negative form
Simple form
mayn't I gangrene? mayn't you gangrene? mayn't he gangrene? mayn't we gangrene? mayn't you gangrene? mayn't they gangrene?
V-ing form
mayn't I be gangrening? mayn't you be gangrening? mayn't he be gangrening? mayn't we be gangrening? mayn't you be gangrening? mayn't they be gangrening?
Perfect
mayn't I have gangrened? mayn't you have gangrened? mayn't he have gangrened? mayn't we have gangrened? mayn't you have gangrened? mayn't they have gangrened?
V-ing perfect
mayn't I have been gangrening? mayn't you have been gangrening? mayn't he have been gangrening? mayn't we have been gangrening? mayn't you have been gangrening? mayn't they have been gangrening?