I may mail you may mail she may mail we may mail you may mail they may mail
V-ing form
I may be mailing you may be mailing she may be mailing we may be mailing you may be mailing they may be mailing
Perfect
I may have mailed you may have mailed she may have mailed we may have mailed you may have mailed they may have mailed
V-ing perfect
I may have been mailing you may have been mailing she may have been mailing we may have been mailing you may have been mailing they may have been mailing
Negation
Simple form
I mayn't mail you mayn't mail she mayn't mail we mayn't mail you mayn't mail they mayn't mail
V-ing form
I mayn't be mailing you mayn't be mailing she mayn't be mailing we mayn't be mailing you mayn't be mailing they mayn't be mailing
Perfect
I mayn't have mailed you mayn't have mailed she mayn't have mailed we mayn't have mailed you mayn't have mailed they mayn't have mailed
V-ing perfect
I mayn't have been mailing you mayn't have been mailing she mayn't have been mailing we mayn't have been mailing you mayn't have been mailing they mayn't have been mailing
Interrogative form
Simple form
may I mail? may you mail? may she mail? may we mail? may you mail? may they mail?
V-ing form
may I be mailing? may you be mailing? may she be mailing? may we be mailing? may you be mailing? may they be mailing?
Perfect
may I have mailed? may you have mailed? may she have mailed? may we have mailed? may you have mailed? may they have mailed?
V-ing perfect
may I have been mailing? may you have been mailing? may she have been mailing? may we have been mailing? may you have been mailing? may they have been mailing?
Interro-negative form
Simple form
mayn't I mail? mayn't you mail? mayn't she mail? mayn't we mail? mayn't you mail? mayn't they mail?
V-ing form
mayn't I be mailing? mayn't you be mailing? mayn't she be mailing? mayn't we be mailing? mayn't you be mailing? mayn't they be mailing?
Perfect
mayn't I have mailed? mayn't you have mailed? mayn't she have mailed? mayn't we have mailed? mayn't you have mailed? mayn't they have mailed?
V-ing perfect
mayn't I have been mailing? mayn't you have been mailing? mayn't she have been mailing? mayn't we have been mailing? mayn't you have been mailing? mayn't they have been mailing?