English verb conjugation
MAY KNOW

Irregular verb: know - knew - known

Affirmation

Simple form	V-ing form
I may know you may know she may know we may know you may know they may know	I may be knowing you may be knowing she may be knowing we may be knowing you may be knowing they may be knowing
Perfect	V-ing perfect
I may have known you may have known she may have known we may have known you may have known they may have known	I may have been knowing you may have been knowing she may have been knowing we may have been knowing you may have been knowing they may have been knowing

Negation

Simple form	V-ing form
I mayn't know you mayn't know she mayn't know we mayn't know you mayn't know they mayn't know	I mayn't be knowing you mayn't be knowing she mayn't be knowing we mayn't be knowing you mayn't be knowing they mayn't be knowing
Perfect	V-ing perfect
I mayn't have known you mayn't have known she mayn't have known we mayn't have known you mayn't have known they mayn't have known	I mayn't have been knowing you mayn't have been knowing she mayn't have been knowing we mayn't have been knowing you mayn't have been knowing they mayn't have been knowing

Interrogative form

Simple form	V-ing form
may I know? may you know? may she know? may we know? may you know? may they know?	may I be knowing? may you be knowing? may she be knowing? may we be knowing? may you be knowing? may they be knowing?
Perfect	V-ing perfect
may I have known? may you have known? may she have known? may we have known? may you have known? may they have known?	may I have been knowing? may you have been knowing? may she have been knowing? may we have been knowing? may you have been knowing? may they have been knowing?

Interro-negative form

Simple form	V-ing form
mayn't I know? mayn't you know? mayn't she know? mayn't we know? mayn't you know? mayn't they know?	mayn't I be knowing? mayn't you be knowing? mayn't she be knowing? mayn't we be knowing? mayn't you be knowing? mayn't they be knowing?
Perfect	V-ing perfect
mayn't I have known? mayn't you have known? mayn't she have known? mayn't we have known? mayn't you have known? mayn't they have known?	mayn't I have been knowing? mayn't you have been knowing? mayn't she have been knowing? mayn't we have been knowing? mayn't you have been knowing? mayn't they have been knowing?