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