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