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