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