English verb conjugation
MAY KNUCKLE

Regular verb: knuckle - knuckled - knuckled

Affirmation

Simple form	V-ing form
I may knuckle you may knuckle he may knuckle we may knuckle you may knuckle they may knuckle	I may be knuckling you may be knuckling he 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 he 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 he 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 may not knuckle you may not knuckle he may not knuckle we may not knuckle you may not knuckle they may not knuckle	I may not be knuckling you may not be knuckling he may not be knuckling we may not be knuckling you may not be knuckling they may not be knuckling
Perfect	V-ing perfect
I may not have knuckled you may not have knuckled he may not have knuckled we may not have knuckled you may not have knuckled they may not have knuckled	I may not have been knuckling you may not have been knuckling he may not have been knuckling we may not have been knuckling you may not have been knuckling they may not have been knuckling

Interrogative form

Simple form	V-ing form
may I knuckle? may you knuckle? may he knuckle? may we knuckle? may you knuckle? may they knuckle?	may I be knuckling? may you be knuckling? may he 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 he 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 he 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
may I not knuckle? may you not knuckle? may he not knuckle? may we not knuckle? may you not knuckle? may they not knuckle?	may I not be knuckling? may you not be knuckling? may he not be knuckling? may we not be knuckling? may you not be knuckling? may they not be knuckling?
Perfect	V-ing perfect
may I not have knuckled? may you not have knuckled? may he not have knuckled? may we not have knuckled? may you not have knuckled? may they not have knuckled?	may I not have been knuckling? may you not have been knuckling? may he not have been knuckling? may we not have been knuckling? may you not have been knuckling? may they not have been knuckling?