English verb conjugation
MAY KNUCKLE

Regular verb: knuckle - knuckled - knuckled

Affirmation

Simple form	V-ing form
I may knuckle you may knuckle she may knuckle we may knuckle you may knuckle they may knuckle	I may be knuckling you may be knuckling she may be knuckling we may be knuckling you may be knuckling they may be knuckling
Perfect	V-ing perfect
I may have knuckled you may have knuckled she may have knuckled we may have knuckled you may have knuckled they may have knuckled	I may have been knuckling you may have been knuckling she may have been knuckling we may have been knuckling you may have been knuckling they may have been knuckling

Negation

Simple form	V-ing form
I mayn't knuckle you mayn't knuckle she mayn't knuckle we mayn't knuckle you mayn't knuckle they mayn't knuckle	I mayn't be knuckling you mayn't be knuckling she mayn't be knuckling we mayn't be knuckling you mayn't be knuckling they mayn't be knuckling
Perfect	V-ing perfect
I mayn't have knuckled you mayn't have knuckled she mayn't have knuckled we mayn't have knuckled you mayn't have knuckled they mayn't have knuckled	I mayn't have been knuckling you mayn't have been knuckling she mayn't have been knuckling we mayn't have been knuckling you mayn't have been knuckling they mayn't have been knuckling

Interrogative form

Simple form	V-ing form
may I knuckle? may you knuckle? may she knuckle? may we knuckle? may you knuckle? may they knuckle?	may I be knuckling? may you be knuckling? may she be knuckling? may we be knuckling? may you be knuckling? may they be knuckling?
Perfect	V-ing perfect
may I have knuckled? may you have knuckled? may she have knuckled? may we have knuckled? may you have knuckled? may they have knuckled?	may I have been knuckling? may you have been knuckling? may she have been knuckling? may we have been knuckling? may you have been knuckling? may they have been knuckling?

Interro-negative form

Simple form	V-ing form
mayn't I knuckle? mayn't you knuckle? mayn't she knuckle? mayn't we knuckle? mayn't you knuckle? mayn't they knuckle?	mayn't I be knuckling? mayn't you be knuckling? mayn't she be knuckling? mayn't we be knuckling? mayn't you be knuckling? mayn't they be knuckling?
Perfect	V-ing perfect
mayn't I have knuckled? mayn't you have knuckled? mayn't she have knuckled? mayn't we have knuckled? mayn't you have knuckled? mayn't they have knuckled?	mayn't I have been knuckling? mayn't you have been knuckling? mayn't she have been knuckling? mayn't we have been knuckling? mayn't you have been knuckling? mayn't they have been knuckling?