English verb conjugation
MAY DESIGN

Regular verb: design - designed - designed

Affirmation

Simple form	V-ing form
I may design you may design she may design we may design you may design they may design	I may be designing you may be designing she may be designing we may be designing you may be designing they may be designing
Perfect	V-ing perfect
I may have designed you may have designed she may have designed we may have designed you may have designed they may have designed	I may have been designing you may have been designing she may have been designing we may have been designing you may have been designing they may have been designing

Negation

Simple form	V-ing form
I mayn't design you mayn't design she mayn't design we mayn't design you mayn't design they mayn't design	I mayn't be designing you mayn't be designing she mayn't be designing we mayn't be designing you mayn't be designing they mayn't be designing
Perfect	V-ing perfect
I mayn't have designed you mayn't have designed she mayn't have designed we mayn't have designed you mayn't have designed they mayn't have designed	I mayn't have been designing you mayn't have been designing she mayn't have been designing we mayn't have been designing you mayn't have been designing they mayn't have been designing

Interrogative form

Simple form	V-ing form
may I design? may you design? may she design? may we design? may you design? may they design?	may I be designing? may you be designing? may she be designing? may we be designing? may you be designing? may they be designing?
Perfect	V-ing perfect
may I have designed? may you have designed? may she have designed? may we have designed? may you have designed? may they have designed?	may I have been designing? may you have been designing? may she have been designing? may we have been designing? may you have been designing? may they have been designing?

Interro-negative form

Simple form	V-ing form
mayn't I design? mayn't you design? mayn't she design? mayn't we design? mayn't you design? mayn't they design?	mayn't I be designing? mayn't you be designing? mayn't she be designing? mayn't we be designing? mayn't you be designing? mayn't they be designing?
Perfect	V-ing perfect
mayn't I have designed? mayn't you have designed? mayn't she have designed? mayn't we have designed? mayn't you have designed? mayn't they have designed?	mayn't I have been designing? mayn't you have been designing? mayn't she have been designing? mayn't we have been designing? mayn't you have been designing? mayn't they have been designing?