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 may not concern you may not concern she may not concern we may not concern you may not concern they may not concern	I may not be concerning you may not be concerning she may not be concerning we may not be concerning you may not be concerning they may not be concerning
Perfect	V-ing perfect
I may not have concerned you may not have concerned she may not have concerned we may not have concerned you may not have concerned they may not have concerned	I may not have been concerning you may not have been concerning she may not have been concerning we may not have been concerning you may not have been concerning they may not 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
may I not concern? may you not concern? may she not concern? may we not concern? may you not concern? may they not concern?	may I not be concerning? may you not be concerning? may she not be concerning? may we not be concerning? may you not be concerning? may they not be concerning?
Perfect	V-ing perfect
may I not have concerned? may you not have concerned? may she not have concerned? may we not have concerned? may you not have concerned? may they not have concerned?	may I not have been concerning? may you not have been concerning? may she not have been concerning? may we not have been concerning? may you not have been concerning? may they not have been concerning?