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