must supersede
Verbo regular: supersede - superseded- superseded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must supersede
you must supersede
he must supersede
we must supersede
you must supersede
they must supersede 	I must be superseding
you must be superseding
he must be superseding
we must be superseding
you must be superseding
they must be superseding	I must have superseded
you must have superseded
he must have superseded
we must have superseded
you must have superseded
they must have superseded	I must have been superseding
you must have been superseding
he must have been superseding
we must have been superseding
you must have been superseding
they must have been superseding	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not supersede
you must not supersede
he must not supersede
we must not supersede
you must not supersede
they must not supersede 	I must not be superseding
you must not be superseding
he must not be superseding
we must not be superseding
you must not be superseding
they must not be superseding	I must not have superseded
you must not have superseded
he must not have superseded
we must not have superseded
you must not have superseded
they must not have superseded	I must not have been superseding
you must not have been superseding
he must not have been superseding
we must not have been superseding
you must not have been superseding
they must not have been superseding	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I supersede?
must you supersede?
must he supersede?
must we supersede?
must you supersede?
must they supersede? 	must I be superseding?
must you be superseding?
must he be superseding?
must we be superseding?
must you be superseding?
must they be superseding? 	must I have superseded?
must you have superseded?
must he have superseded?
must we have superseded?
must you have superseded?
must they have superseded? 	must I have been superseding?
must you have been superseding?
must he have been superseding?
must we have been superseding?
must you have been superseding?
must they have been superseding? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not supersede?
must you not supersede?
must he not supersede?
must we not supersede?
must you not supersede?
must they not supersede? 	must I not be superseding?
must you not be superseding?
must he not be superseding?
must we not be superseding?
must you not be superseding?
must they not be superseding? 	must I not have superseded?
must you not have superseded?
must he not have superseded?
must we not have superseded?
must you not have superseded?
must they not have superseded? 	must I not have been superseding?
must you not have been superseding?
must he not have been superseding?
must we not have been superseding?
must you not have been superseding?
must they not have been superseding?