I may greet you may greet she may greet we may greet you may greet they may greet
V-ing form
I may be greeting you may be greeting she may be greeting we may be greeting you may be greeting they may be greeting
Perfect
I may have greeted you may have greeted she may have greeted we may have greeted you may have greeted they may have greeted
V-ing perfect
I may have been greeting you may have been greeting she may have been greeting we may have been greeting you may have been greeting they may have been greeting
Negation
Simple form
I may not greet you may not greet she may not greet we may not greet you may not greet they may not greet
V-ing form
I may not be greeting you may not be greeting she may not be greeting we may not be greeting you may not be greeting they may not be greeting
Perfect
I may not have greeted you may not have greeted she may not have greeted we may not have greeted you may not have greeted they may not have greeted
V-ing perfect
I may not have been greeting you may not have been greeting she may not have been greeting we may not have been greeting you may not have been greeting they may not have been greeting
Interrogative form
Simple form
may I greet? may you greet? may she greet? may we greet? may you greet? may they greet?
V-ing form
may I be greeting? may you be greeting? may she be greeting? may we be greeting? may you be greeting? may they be greeting?
Perfect
may I have greeted? may you have greeted? may she have greeted? may we have greeted? may you have greeted? may they have greeted?
V-ing perfect
may I have been greeting? may you have been greeting? may she have been greeting? may we have been greeting? may you have been greeting? may they have been greeting?
Interro-negative form
Simple form
may I not greet? may you not greet? may she not greet? may we not greet? may you not greet? may they not greet?
V-ing form
may I not be greeting? may you not be greeting? may she not be greeting? may we not be greeting? may you not be greeting? may they not be greeting?
Perfect
may I not have greeted? may you not have greeted? may she not have greeted? may we not have greeted? may you not have greeted? may they not have greeted?
V-ing perfect
may I not have been greeting? may you not have been greeting? may she not have been greeting? may we not have been greeting? may you not have been greeting? may they not have been greeting?