English verb conjugation
MAY KNIFE

Regular verb: knife - knifed - knifed

Affirmation

Simple form	V-ing form
I may knife you may knife she may knife we may knife you may knife they may knife	I may be knifing you may be knifing she may be knifing we may be knifing you may be knifing they may be knifing
Perfect	V-ing perfect
I may have knifed you may have knifed she may have knifed we may have knifed you may have knifed they may have knifed	I may have been knifing you may have been knifing she may have been knifing we may have been knifing you may have been knifing they may have been knifing

Negation

Simple form	V-ing form
I mayn't knife you mayn't knife she mayn't knife we mayn't knife you mayn't knife they mayn't knife	I mayn't be knifing you mayn't be knifing she mayn't be knifing we mayn't be knifing you mayn't be knifing they mayn't be knifing
Perfect	V-ing perfect
I mayn't have knifed you mayn't have knifed she mayn't have knifed we mayn't have knifed you mayn't have knifed they mayn't have knifed	I mayn't have been knifing you mayn't have been knifing she mayn't have been knifing we mayn't have been knifing you mayn't have been knifing they mayn't have been knifing

Interrogative form

Simple form	V-ing form
may I knife? may you knife? may she knife? may we knife? may you knife? may they knife?	may I be knifing? may you be knifing? may she be knifing? may we be knifing? may you be knifing? may they be knifing?
Perfect	V-ing perfect
may I have knifed? may you have knifed? may she have knifed? may we have knifed? may you have knifed? may they have knifed?	may I have been knifing? may you have been knifing? may she have been knifing? may we have been knifing? may you have been knifing? may they have been knifing?

Interro-negative form

Simple form	V-ing form
mayn't I knife? mayn't you knife? mayn't she knife? mayn't we knife? mayn't you knife? mayn't they knife?	mayn't I be knifing? mayn't you be knifing? mayn't she be knifing? mayn't we be knifing? mayn't you be knifing? mayn't they be knifing?
Perfect	V-ing perfect
mayn't I have knifed? mayn't you have knifed? mayn't she have knifed? mayn't we have knifed? mayn't you have knifed? mayn't they have knifed?	mayn't I have been knifing? mayn't you have been knifing? mayn't she have been knifing? mayn't we have been knifing? mayn't you have been knifing? mayn't they have been knifing?