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