I may speak you may speak she may speak we may speak you may speak they may speak
V-ing form
I may be speaking you may be speaking she may be speaking we may be speaking you may be speaking they may be speaking
Perfect
I may have spoken, spoke you may have spoken, spoke she may have spoken, spoke we may have spoken, spoke you may have spoken, spoke they may have spoken, spoke
V-ing perfect
I may have been speaking you may have been speaking she may have been speaking we may have been speaking you may have been speaking they may have been speaking
Negation
Simple form
I mayn't speak you mayn't speak she mayn't speak we mayn't speak you mayn't speak they mayn't speak
V-ing form
I mayn't be speaking you mayn't be speaking she mayn't be speaking we mayn't be speaking you mayn't be speaking they mayn't be speaking
Perfect
I mayn't have spoken, spoke you mayn't have spoken, spoke she mayn't have spoken, spoke we mayn't have spoken, spoke you mayn't have spoken, spoke they mayn't have spoken, spoke
V-ing perfect
I mayn't have been speaking you mayn't have been speaking she mayn't have been speaking we mayn't have been speaking you mayn't have been speaking they mayn't have been speaking
Interrogative form
Simple form
may I speak? may you speak? may she speak? may we speak? may you speak? may they speak?
V-ing form
may I be speaking? may you be speaking? may she be speaking? may we be speaking? may you be speaking? may they be speaking?
Perfect
may I have spoken, spoke? may you have spoken, spoke? may she have spoken, spoke? may we have spoken, spoke? may you have spoken, spoke? may they have spoken, spoke?
V-ing perfect
may I have been speaking? may you have been speaking? may she have been speaking? may we have been speaking? may you have been speaking? may they have been speaking?
Interro-negative form
Simple form
mayn't I speak? mayn't you speak? mayn't she speak? mayn't we speak? mayn't you speak? mayn't they speak?
V-ing form
mayn't I be speaking? mayn't you be speaking? mayn't she be speaking? mayn't we be speaking? mayn't you be speaking? mayn't they be speaking?
Perfect
mayn't I have spoken, spoke? mayn't you have spoken, spoke? mayn't she have spoken, spoke? mayn't we have spoken, spoke? mayn't you have spoken, spoke? mayn't they have spoken, spoke?
V-ing perfect
mayn't I have been speaking? mayn't you have been speaking? mayn't she have been speaking? mayn't we have been speaking? mayn't you have been speaking? mayn't they have been speaking?