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