English verb conjugation
MAY GREATEN

Regular verb: greaten - greatened - greatened

Affirmation

Simple form	V-ing form
I may greaten you may greaten he may greaten we may greaten you may greaten they may greaten	I may be greatening you may be greatening he may be greatening we may be greatening you may be greatening they may be greatening
Perfect	V-ing perfect
I may have greatened you may have greatened he may have greatened we may have greatened you may have greatened they may have greatened	I may have been greatening you may have been greatening he may have been greatening we may have been greatening you may have been greatening they may have been greatening

Negation

Simple form	V-ing form
I may not greaten you may not greaten he may not greaten we may not greaten you may not greaten they may not greaten	I may not be greatening you may not be greatening he may not be greatening we may not be greatening you may not be greatening they may not be greatening
Perfect	V-ing perfect
I may not have greatened you may not have greatened he may not have greatened we may not have greatened you may not have greatened they may not have greatened	I may not have been greatening you may not have been greatening he 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	V-ing form
may I greaten? may you greaten? may he greaten? may we greaten? may you greaten? may they greaten?	may I be greatening? may you be greatening? may he be greatening? may we be greatening? may you be greatening? may they be greatening?
Perfect	V-ing perfect
may I have greatened? may you have greatened? may he have greatened? may we have greatened? may you have greatened? may they have greatened?	may I have been greatening? may you have been greatening? may he have been greatening? may we have been greatening? may you have been greatening? may they have been greatening?

Interro-negative form

Simple form	V-ing form
may I not greaten? may you not greaten? may he not greaten? may we not greaten? may you not greaten? may they not greaten?	may I not be greatening? may you not be greatening? may he not be greatening? may we not be greatening? may you not be greatening? may they not be greatening?
Perfect	V-ing perfect
may I not have greatened? may you not have greatened? may he not have greatened? may we not have greatened? may you not have greatened? may they not have greatened?	may I not have been greatening? may you not have been greatening? may he not have been greatening? may we not have been greatening? may you not have been greatening? may they not have been greatening?