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