English verb conjugation
MAY CONCERN

Regular verb: concern - concerned - concerned

Affirmation

Simple form	V-ing form
I may concern you may concern she may concern we may concern you may concern they may concern	I may be concerning you may be concerning she may be concerning we may be concerning you may be concerning they may be concerning
Perfect	V-ing perfect
I may have concerned you may have concerned she may have concerned we may have concerned you may have concerned they may have concerned	I may have been concerning you may have been concerning she may have been concerning we may have been concerning you may have been concerning they may have been concerning

Negation

Simple form	V-ing form
I mayn't concern you mayn't concern she mayn't concern we mayn't concern you mayn't concern they mayn't concern	I mayn't be concerning you mayn't be concerning she mayn't be concerning we mayn't be concerning you mayn't be concerning they mayn't be concerning
Perfect	V-ing perfect
I mayn't have concerned you mayn't have concerned she mayn't have concerned we mayn't have concerned you mayn't have concerned they mayn't have concerned	I mayn't have been concerning you mayn't have been concerning she mayn't have been concerning we mayn't have been concerning you mayn't have been concerning they mayn't have been concerning

Interrogative form

Simple form	V-ing form
may I concern? may you concern? may she concern? may we concern? may you concern? may they concern?	may I be concerning? may you be concerning? may she be concerning? may we be concerning? may you be concerning? may they be concerning?
Perfect	V-ing perfect
may I have concerned? may you have concerned? may she have concerned? may we have concerned? may you have concerned? may they have concerned?	may I have been concerning? may you have been concerning? may she have been concerning? may we have been concerning? may you have been concerning? may they have been concerning?

Interro-negative form

Simple form	V-ing form
mayn't I concern? mayn't you concern? mayn't she concern? mayn't we concern? mayn't you concern? mayn't they concern?	mayn't I be concerning? mayn't you be concerning? mayn't she be concerning? mayn't we be concerning? mayn't you be concerning? mayn't they be concerning?
Perfect	V-ing perfect
mayn't I have concerned? mayn't you have concerned? mayn't she have concerned? mayn't we have concerned? mayn't you have concerned? mayn't they have concerned?	mayn't I have been concerning? mayn't you have been concerning? mayn't she have been concerning? mayn't we have been concerning? mayn't you have been concerning? mayn't they have been concerning?