must suffice
Verbo regular: suffice - sufficed- sufficed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must suffice
you must suffice
he must suffice
we must suffice
you must suffice
they must suffice 	I must be sufficing
you must be sufficing
he must be sufficing
we must be sufficing
you must be sufficing
they must be sufficing	I must have sufficed
you must have sufficed
he must have sufficed
we must have sufficed
you must have sufficed
they must have sufficed	I must have been sufficing
you must have been sufficing
he must have been sufficing
we must have been sufficing
you must have been sufficing
they must have been sufficing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't suffice
you mustn't suffice
he mustn't suffice
we mustn't suffice
you mustn't suffice
they mustn't suffice 	I mustn't be sufficing
you mustn't be sufficing
he mustn't be sufficing
we mustn't be sufficing
you mustn't be sufficing
they mustn't be sufficing	I mustn't have sufficed
you mustn't have sufficed
he mustn't have sufficed
we mustn't have sufficed
you mustn't have sufficed
they mustn't have sufficed	I mustn't have been sufficing
you mustn't have been sufficing
he mustn't have been sufficing
we mustn't have been sufficing
you mustn't have been sufficing
they mustn't have been sufficing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I suffice?
must you suffice?
must he suffice?
must we suffice?
must you suffice?
must they suffice? 	must I be sufficing?
must you be sufficing?
must he be sufficing?
must we be sufficing?
must you be sufficing?
must they be sufficing? 	must I have sufficed?
must you have sufficed?
must he have sufficed?
must we have sufficed?
must you have sufficed?
must they have sufficed? 	must I have been sufficing?
must you have been sufficing?
must he have been sufficing?
must we have been sufficing?
must you have been sufficing?
must they have been sufficing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I suffice?
mustn't you suffice?
mustn't he suffice?
mustn't we suffice?
mustn't you suffice?
mustn't they suffice? 	mustn't I be sufficing?
mustn't you be sufficing?
mustn't he be sufficing?
mustn't we be sufficing?
mustn't you be sufficing?
mustn't they be sufficing? 	mustn't I have sufficed?
mustn't you have sufficed?
mustn't he have sufficed?
mustn't we have sufficed?
mustn't you have sufficed?
mustn't they have sufficed? 	mustn't I have been sufficing?
mustn't you have been sufficing?
mustn't he have been sufficing?
mustn't we have been sufficing?
mustn't you have been sufficing?
mustn't they have been sufficing?