I may question you may question he may question we may question you may question they may question
V-ing form
I may be questioning you may be questioning he may be questioning we may be questioning you may be questioning they may be questioning
Perfect
I may have questioned you may have questioned he may have questioned we may have questioned you may have questioned they may have questioned
V-ing perfect
I may have been questioning you may have been questioning he may have been questioning we may have been questioning you may have been questioning they may have been questioning
Negation
Simple form
I may not question you may not question he may not question we may not question you may not question they may not question
V-ing form
I may not be questioning you may not be questioning he may not be questioning we may not be questioning you may not be questioning they may not be questioning
Perfect
I may not have questioned you may not have questioned he may not have questioned we may not have questioned you may not have questioned they may not have questioned
V-ing perfect
I may not have been questioning you may not have been questioning he may not have been questioning we may not have been questioning you may not have been questioning they may not have been questioning
Interrogative form
Simple form
may I question? may you question? may he question? may we question? may you question? may they question?
V-ing form
may I be questioning? may you be questioning? may he be questioning? may we be questioning? may you be questioning? may they be questioning?
Perfect
may I have questioned? may you have questioned? may he have questioned? may we have questioned? may you have questioned? may they have questioned?
V-ing perfect
may I have been questioning? may you have been questioning? may he have been questioning? may we have been questioning? may you have been questioning? may they have been questioning?
Interro-negative form
Simple form
may I not question? may you not question? may he not question? may we not question? may you not question? may they not question?
V-ing form
may I not be questioning? may you not be questioning? may he not be questioning? may we not be questioning? may you not be questioning? may they not be questioning?
Perfect
may I not have questioned? may you not have questioned? may he not have questioned? may we not have questioned? may you not have questioned? may they not have questioned?
V-ing perfect
may I not have been questioning? may you not have been questioning? may he not have been questioning? may we not have been questioning? may you not have been questioning? may they not have been questioning?