I may moo you may moo she may moo we may moo you may moo they may moo
V-ing form
I may be mooing you may be mooing she may be mooing we may be mooing you may be mooing they may be mooing
Perfect
I may have mooed you may have mooed she may have mooed we may have mooed you may have mooed they may have mooed
V-ing perfect
I may have been mooing you may have been mooing she may have been mooing we may have been mooing you may have been mooing they may have been mooing
Negation
Simple form
I may not moo you may not moo she may not moo we may not moo you may not moo they may not moo
V-ing form
I may not be mooing you may not be mooing she may not be mooing we may not be mooing you may not be mooing they may not be mooing
Perfect
I may not have mooed you may not have mooed she may not have mooed we may not have mooed you may not have mooed they may not have mooed
V-ing perfect
I may not have been mooing you may not have been mooing she may not have been mooing we may not have been mooing you may not have been mooing they may not have been mooing
Interrogative form
Simple form
may I moo? may you moo? may she moo? may we moo? may you moo? may they moo?
V-ing form
may I be mooing? may you be mooing? may she be mooing? may we be mooing? may you be mooing? may they be mooing?
Perfect
may I have mooed? may you have mooed? may she have mooed? may we have mooed? may you have mooed? may they have mooed?
V-ing perfect
may I have been mooing? may you have been mooing? may she have been mooing? may we have been mooing? may you have been mooing? may they have been mooing?
Interro-negative form
Simple form
may I not moo? may you not moo? may she not moo? may we not moo? may you not moo? may they not moo?
V-ing form
may I not be mooing? may you not be mooing? may she not be mooing? may we not be mooing? may you not be mooing? may they not be mooing?
Perfect
may I not have mooed? may you not have mooed? may she not have mooed? may we not have mooed? may you not have mooed? may they not have mooed?
V-ing perfect
may I not have been mooing? may you not have been mooing? may she not have been mooing? may we not have been mooing? may you not have been mooing? may they not have been mooing?