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