English verb conjugation
MAY ADD

Regular verb: add - added - added

Affirmation

Simple form	V-ing form
I may add you may add she may add we may add you may add they may add	I may be adding you may be adding she may be adding we may be adding you may be adding they may be adding
Perfect	V-ing perfect
I may have added you may have added she may have added we may have added you may have added they may have added	I may have been adding you may have been adding she may have been adding we may have been adding you may have been adding they may have been adding

Negation

Simple form	V-ing form
I mayn't add you mayn't add she mayn't add we mayn't add you mayn't add they mayn't add	I mayn't be adding you mayn't be adding she mayn't be adding we mayn't be adding you mayn't be adding they mayn't be adding
Perfect	V-ing perfect
I mayn't have added you mayn't have added she mayn't have added we mayn't have added you mayn't have added they mayn't have added	I mayn't have been adding you mayn't have been adding she mayn't have been adding we mayn't have been adding you mayn't have been adding they mayn't have been adding

Interrogative form

Simple form	V-ing form
may I add? may you add? may she add? may we add? may you add? may they add?	may I be adding? may you be adding? may she be adding? may we be adding? may you be adding? may they be adding?
Perfect	V-ing perfect
may I have added? may you have added? may she have added? may we have added? may you have added? may they have added?	may I have been adding? may you have been adding? may she have been adding? may we have been adding? may you have been adding? may they have been adding?

Interro-negative form

Simple form	V-ing form
mayn't I add? mayn't you add? mayn't she add? mayn't we add? mayn't you add? mayn't they add?	mayn't I be adding? mayn't you be adding? mayn't she be adding? mayn't we be adding? mayn't you be adding? mayn't they be adding?
Perfect	V-ing perfect
mayn't I have added? mayn't you have added? mayn't she have added? mayn't we have added? mayn't you have added? mayn't they have added?	mayn't I have been adding? mayn't you have been adding? mayn't she have been adding? mayn't we have been adding? mayn't you have been adding? mayn't they have been adding?