I may begin you may begin he may begin we may begin you may begin they may begin
V-ing form
I may be beginning you may be beginning he may be beginning we may be beginning you may be beginning they may be beginning
Perfect
I may have begun you may have begun he may have begun we may have begun you may have begun they may have begun
V-ing perfect
I may have been beginning you may have been beginning he may have been beginning we may have been beginning you may have been beginning they may have been beginning
Negation
Simple form
I mayn't begin you mayn't begin he mayn't begin we mayn't begin you mayn't begin they mayn't begin
V-ing form
I mayn't be beginning you mayn't be beginning he mayn't be beginning we mayn't be beginning you mayn't be beginning they mayn't be beginning
Perfect
I mayn't have begun you mayn't have begun he mayn't have begun we mayn't have begun you mayn't have begun they mayn't have begun
V-ing perfect
I mayn't have been beginning you mayn't have been beginning he mayn't have been beginning we mayn't have been beginning you mayn't have been beginning they mayn't have been beginning
Interrogative form
Simple form
may I begin? may you begin? may he begin? may we begin? may you begin? may they begin?
V-ing form
may I be beginning? may you be beginning? may he be beginning? may we be beginning? may you be beginning? may they be beginning?
Perfect
may I have begun? may you have begun? may he have begun? may we have begun? may you have begun? may they have begun?
V-ing perfect
may I have been beginning? may you have been beginning? may he have been beginning? may we have been beginning? may you have been beginning? may they have been beginning?
Interro-negative form
Simple form
mayn't I begin? mayn't you begin? mayn't he begin? mayn't we begin? mayn't you begin? mayn't they begin?
V-ing form
mayn't I be beginning? mayn't you be beginning? mayn't he be beginning? mayn't we be beginning? mayn't you be beginning? mayn't they be beginning?
Perfect
mayn't I have begun? mayn't you have begun? mayn't he have begun? mayn't we have begun? mayn't you have begun? mayn't they have begun?
V-ing perfect
mayn't I have been beginning? mayn't you have been beginning? mayn't he have been beginning? mayn't we have been beginning? mayn't you have been beginning? mayn't they have been beginning?