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