English verb conjugation
MAY RETAIN

Regular verb: retain - retained - retained

Affirmation

Simple form	V-ing form
I may retain you may retain she may retain we may retain you may retain they may retain	I may be retaining you may be retaining she may be retaining we may be retaining you may be retaining they may be retaining
Perfect	V-ing perfect
I may have retained you may have retained she may have retained we may have retained you may have retained they may have retained	I may have been retaining you may have been retaining she may have been retaining we may have been retaining you may have been retaining they may have been retaining

Negation

Simple form	V-ing form
I mayn't retain you mayn't retain she mayn't retain we mayn't retain you mayn't retain they mayn't retain	I mayn't be retaining you mayn't be retaining she mayn't be retaining we mayn't be retaining you mayn't be retaining they mayn't be retaining
Perfect	V-ing perfect
I mayn't have retained you mayn't have retained she mayn't have retained we mayn't have retained you mayn't have retained they mayn't have retained	I mayn't have been retaining you mayn't have been retaining she mayn't have been retaining we mayn't have been retaining you mayn't have been retaining they mayn't have been retaining

Interrogative form

Simple form	V-ing form
may I retain? may you retain? may she retain? may we retain? may you retain? may they retain?	may I be retaining? may you be retaining? may she be retaining? may we be retaining? may you be retaining? may they be retaining?
Perfect	V-ing perfect
may I have retained? may you have retained? may she have retained? may we have retained? may you have retained? may they have retained?	may I have been retaining? may you have been retaining? may she have been retaining? may we have been retaining? may you have been retaining? may they have been retaining?

Interro-negative form

Simple form	V-ing form
mayn't I retain? mayn't you retain? mayn't she retain? mayn't we retain? mayn't you retain? mayn't they retain?	mayn't I be retaining? mayn't you be retaining? mayn't she be retaining? mayn't we be retaining? mayn't you be retaining? mayn't they be retaining?
Perfect	V-ing perfect
mayn't I have retained? mayn't you have retained? mayn't she have retained? mayn't we have retained? mayn't you have retained? mayn't they have retained?	mayn't I have been retaining? mayn't you have been retaining? mayn't she have been retaining? mayn't we have been retaining? mayn't you have been retaining? mayn't they have been retaining?