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