English verb conjugation
MUST GREATEN

Regular verb: greaten - greatened - greatened

Affirmation

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

Negation

Simple form	V-ing form
I mustn't greaten you mustn't greaten he mustn't greaten we mustn't greaten you mustn't greaten they mustn't greaten	I mustn't be greatening you mustn't be greatening he mustn't be greatening we mustn't be greatening you mustn't be greatening they mustn't be greatening
Perfect	V-ing perfect
I mustn't have greatened you mustn't have greatened he mustn't have greatened we mustn't have greatened you mustn't have greatened they mustn't have greatened	I mustn't have been greatening you mustn't have been greatening he mustn't have been greatening we mustn't have been greatening you mustn't have been greatening they mustn't have been greatening

Interrogative form

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

Interro-negative form

Simple form	V-ing form
mustn't I greaten? mustn't you greaten? mustn't he greaten? mustn't we greaten? mustn't you greaten? mustn't they greaten?	mustn't I be greatening? mustn't you be greatening? mustn't he be greatening? mustn't we be greatening? mustn't you be greatening? mustn't they be greatening?
Perfect	V-ing perfect
mustn't I have greatened? mustn't you have greatened? mustn't he have greatened? mustn't we have greatened? mustn't you have greatened? mustn't they have greatened?	mustn't I have been greatening? mustn't you have been greatening? mustn't he have been greatening? mustn't we have been greatening? mustn't you have been greatening? mustn't they have been greatening?