I may comb you may comb he may comb we may comb you may comb they may comb
V-ing form
I may be combing you may be combing he may be combing we may be combing you may be combing they may be combing
Perfect
I may have combed you may have combed he may have combed we may have combed you may have combed they may have combed
V-ing perfect
I may have been combing you may have been combing he may have been combing we may have been combing you may have been combing they may have been combing
Negation
Simple form
I may not comb you may not comb he may not comb we may not comb you may not comb they may not comb
V-ing form
I may not be combing you may not be combing he may not be combing we may not be combing you may not be combing they may not be combing
Perfect
I may not have combed you may not have combed he may not have combed we may not have combed you may not have combed they may not have combed
V-ing perfect
I may not have been combing you may not have been combing he may not have been combing we may not have been combing you may not have been combing they may not have been combing
Interrogative form
Simple form
may I comb? may you comb? may he comb? may we comb? may you comb? may they comb?
V-ing form
may I be combing? may you be combing? may he be combing? may we be combing? may you be combing? may they be combing?
Perfect
may I have combed? may you have combed? may he have combed? may we have combed? may you have combed? may they have combed?
V-ing perfect
may I have been combing? may you have been combing? may he have been combing? may we have been combing? may you have been combing? may they have been combing?
Interro-negative form
Simple form
may I not comb? may you not comb? may he not comb? may we not comb? may you not comb? may they not comb?
V-ing form
may I not be combing? may you not be combing? may he not be combing? may we not be combing? may you not be combing? may they not be combing?
Perfect
may I not have combed? may you not have combed? may he not have combed? may we not have combed? may you not have combed? may they not have combed?
V-ing perfect
may I not have been combing? may you not have been combing? may he not have been combing? may we not have been combing? may you not have been combing? may they not have been combing?