must greaten
Verbo regular: greaten - greatened- greatened

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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	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	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not greaten
you must not greaten
he must not greaten
we must not greaten
you must not greaten
they must not greaten 	I must not be greatening
you must not be greatening
he must not be greatening
we must not be greatening
you must not be greatening
they must not be greatening	I must not have greatened
you must not have greatened
he must not have greatened
we must not have greatened
you must not have greatened
they must not have greatened	I must not have been greatening
you must not have been greatening
he must not have been greatening
we must not have been greatening
you must not have been greatening
they must not have been greatening	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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? 	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? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not greaten?
must you not greaten?
must he not greaten?
must we not greaten?
must you not greaten?
must they not greaten? 	must I not be greatening?
must you not be greatening?
must he not be greatening?
must we not be greatening?
must you not be greatening?
must they not be greatening? 	must I not have greatened?
must you not have greatened?
must he not have greatened?
must we not have greatened?
must you not have greatened?
must they not have greatened? 	must I not have been greatening?
must you not have been greatening?
must he not have been greatening?
must we not have been greatening?
must you not have been greatening?
must they not have been greatening?