must sacrifice
Verbo regular: sacrifice - sacrificed- sacrificed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must sacrifice
you must sacrifice
he must sacrifice
we must sacrifice
you must sacrifice
they must sacrifice 	I must be sacrificing
you must be sacrificing
he must be sacrificing
we must be sacrificing
you must be sacrificing
they must be sacrificing	I must have sacrificed
you must have sacrificed
he must have sacrificed
we must have sacrificed
you must have sacrificed
they must have sacrificed	I must have been sacrificing
you must have been sacrificing
he must have been sacrificing
we must have been sacrificing
you must have been sacrificing
they must have been sacrificing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't sacrifice
you mustn't sacrifice
he mustn't sacrifice
we mustn't sacrifice
you mustn't sacrifice
they mustn't sacrifice 	I mustn't be sacrificing
you mustn't be sacrificing
he mustn't be sacrificing
we mustn't be sacrificing
you mustn't be sacrificing
they mustn't be sacrificing	I mustn't have sacrificed
you mustn't have sacrificed
he mustn't have sacrificed
we mustn't have sacrificed
you mustn't have sacrificed
they mustn't have sacrificed	I mustn't have been sacrificing
you mustn't have been sacrificing
he mustn't have been sacrificing
we mustn't have been sacrificing
you mustn't have been sacrificing
they mustn't have been sacrificing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I sacrifice?
must you sacrifice?
must he sacrifice?
must we sacrifice?
must you sacrifice?
must they sacrifice? 	must I be sacrificing?
must you be sacrificing?
must he be sacrificing?
must we be sacrificing?
must you be sacrificing?
must they be sacrificing? 	must I have sacrificed?
must you have sacrificed?
must he have sacrificed?
must we have sacrificed?
must you have sacrificed?
must they have sacrificed? 	must I have been sacrificing?
must you have been sacrificing?
must he have been sacrificing?
must we have been sacrificing?
must you have been sacrificing?
must they have been sacrificing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I sacrifice?
mustn't you sacrifice?
mustn't he sacrifice?
mustn't we sacrifice?
mustn't you sacrifice?
mustn't they sacrifice? 	mustn't I be sacrificing?
mustn't you be sacrificing?
mustn't he be sacrificing?
mustn't we be sacrificing?
mustn't you be sacrificing?
mustn't they be sacrificing? 	mustn't I have sacrificed?
mustn't you have sacrificed?
mustn't he have sacrificed?
mustn't we have sacrificed?
mustn't you have sacrificed?
mustn't they have sacrificed? 	mustn't I have been sacrificing?
mustn't you have been sacrificing?
mustn't he have been sacrificing?
mustn't we have been sacrificing?
mustn't you have been sacrificing?
mustn't they have been sacrificing?