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