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