must suffice
Verbo regular: suffice - sufficed- sufficed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con 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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not suffice
you must not suffice
he 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
he 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
he 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
he 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 con V-ing 	Perfecto 	Perfecto con 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-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not suffice?
must you not suffice?
must he 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 he 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 he 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 he not have been sufficing?
must we not have been sufficing?
must you not have been sufficing?
must they not have been sufficing?