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