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