I may slip you may slip she may slip we may slip you may slip they may slip
V-ing form
I may be slipping you may be slipping she may be slipping we may be slipping you may be slipping they may be slipping
Perfect
I may have slipped you may have slipped she may have slipped we may have slipped you may have slipped they may have slipped
V-ing perfect
I may have been slipping you may have been slipping she may have been slipping we may have been slipping you may have been slipping they may have been slipping
Negation
Simple form
I mayn't slip you mayn't slip she mayn't slip we mayn't slip you mayn't slip they mayn't slip
V-ing form
I mayn't be slipping you mayn't be slipping she mayn't be slipping we mayn't be slipping you mayn't be slipping they mayn't be slipping
Perfect
I mayn't have slipped you mayn't have slipped she mayn't have slipped we mayn't have slipped you mayn't have slipped they mayn't have slipped
V-ing perfect
I mayn't have been slipping you mayn't have been slipping she mayn't have been slipping we mayn't have been slipping you mayn't have been slipping they mayn't have been slipping
Interrogative form
Simple form
may I slip? may you slip? may she slip? may we slip? may you slip? may they slip?
V-ing form
may I be slipping? may you be slipping? may she be slipping? may we be slipping? may you be slipping? may they be slipping?
Perfect
may I have slipped? may you have slipped? may she have slipped? may we have slipped? may you have slipped? may they have slipped?
V-ing perfect
may I have been slipping? may you have been slipping? may she have been slipping? may we have been slipping? may you have been slipping? may they have been slipping?
Interro-negative form
Simple form
mayn't I slip? mayn't you slip? mayn't she slip? mayn't we slip? mayn't you slip? mayn't they slip?
V-ing form
mayn't I be slipping? mayn't you be slipping? mayn't she be slipping? mayn't we be slipping? mayn't you be slipping? mayn't they be slipping?
Perfect
mayn't I have slipped? mayn't you have slipped? mayn't she have slipped? mayn't we have slipped? mayn't you have slipped? mayn't they have slipped?
V-ing perfect
mayn't I have been slipping? mayn't you have been slipping? mayn't she have been slipping? mayn't we have been slipping? mayn't you have been slipping? mayn't they have been slipping?