I may greaten you may greaten she may greaten we may greaten you may greaten they may greaten
V-ing form
I may be greatening you may be greatening she may be greatening we may be greatening you may be greatening they may be greatening
Perfect
I may have greatened you may have greatened she may have greatened we may have greatened you may have greatened they may have greatened
V-ing perfect
I may have been greatening you may have been greatening she may have been greatening we may have been greatening you may have been greatening they may have been greatening
Negation
Simple form
I may not greaten you may not greaten she may not greaten we may not greaten you may not greaten they may not greaten
V-ing form
I may not be greatening you may not be greatening she may not be greatening we may not be greatening you may not be greatening they may not be greatening
Perfect
I may not have greatened you may not have greatened she may not have greatened we may not have greatened you may not have greatened they may not have greatened
V-ing perfect
I may not have been greatening you may not have been greatening she may not have been greatening we may not have been greatening you may not have been greatening they may not have been greatening
Interrogative form
Simple form
may I greaten? may you greaten? may she greaten? may we greaten? may you greaten? may they greaten?
V-ing form
may I be greatening? may you be greatening? may she be greatening? may we be greatening? may you be greatening? may they be greatening?
Perfect
may I have greatened? may you have greatened? may she have greatened? may we have greatened? may you have greatened? may they have greatened?
V-ing perfect
may I have been greatening? may you have been greatening? may she have been greatening? may we have been greatening? may you have been greatening? may they have been greatening?
Interro-negative form
Simple form
may I not greaten? may you not greaten? may she not greaten? may we not greaten? may you not greaten? may they not greaten?
V-ing form
may I not be greatening? may you not be greatening? may she not be greatening? may we not be greatening? may you not be greatening? may they not be greatening?
Perfect
may I not have greatened? may you not have greatened? may she not have greatened? may we not have greatened? may you not have greatened? may they not have greatened?
V-ing perfect
may I not have been greatening? may you not have been greatening? may she not have been greatening? may we not have been greatening? may you not have been greatening? may they not have been greatening?