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
she must suffice
we must suffice
you must suffice
they must suffice 	I must be sufficing
you must be sufficing
she must be sufficing
we must be sufficing
you must be sufficing
they must be sufficing	I must have sufficed
you must have sufficed
she 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
she 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 must not suffice
you must not suffice
she must not suffice
we must not suffice
you must not suffice
they must not suffice 	I must not be sufficing
you must not be sufficing
she must not be sufficing
we must not be sufficing
you must not be sufficing
they must not be sufficing	I must not have sufficed
you must not have sufficed
she must not have sufficed
we must not have sufficed
you must not have sufficed
they must not have sufficed	I must not have been sufficing
you must not have been sufficing
she must not have been sufficing
we must not have been sufficing
you must not have been sufficing
they must not have been sufficing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I suffice?
must you suffice?
must she suffice?
must we suffice?
must you suffice?
must they suffice? 	must I be sufficing?
must you be sufficing?
must she be sufficing?
must we be sufficing?
must you be sufficing?
must they be sufficing? 	must I have sufficed?
must you have sufficed?
must she 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 she 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 	
must I not suffice?
must you not suffice?
must she not suffice?
must we not suffice?
must you not suffice?
must they not suffice? 	must I not be sufficing?
must you not be sufficing?
must she not be sufficing?
must we not be sufficing?
must you not be sufficing?
must they not be sufficing? 	must I not have sufficed?
must you not have sufficed?
must she not have sufficed?
must we not have sufficed?
must you not have sufficed?
must they not have sufficed? 	must I not have been sufficing?
must you not have been sufficing?
must she not have been sufficing?
must we not have been sufficing?
must you not have been sufficing?
must they not have been sufficing?