must rarefy
Verbo regular: rarefy - rarefied- rarefied

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must rarefy
you must rarefy
he must rarefy
we must rarefy
you must rarefy
they must rarefy 	I must be rarefying
you must be rarefying
he must be rarefying
we must be rarefying
you must be rarefying
they must be rarefying	I must have rarefied
you must have rarefied
he must have rarefied
we must have rarefied
you must have rarefied
they must have rarefied	I must have been rarefying
you must have been rarefying
he must have been rarefying
we must have been rarefying
you must have been rarefying
they must have been rarefying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not rarefy
you must not rarefy
he must not rarefy
we must not rarefy
you must not rarefy
they must not rarefy 	I must not be rarefying
you must not be rarefying
he must not be rarefying
we must not be rarefying
you must not be rarefying
they must not be rarefying	I must not have rarefied
you must not have rarefied
he must not have rarefied
we must not have rarefied
you must not have rarefied
they must not have rarefied	I must not have been rarefying
you must not have been rarefying
he must not have been rarefying
we must not have been rarefying
you must not have been rarefying
they must not have been rarefying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I rarefy?
must you rarefy?
must he rarefy?
must we rarefy?
must you rarefy?
must they rarefy? 	must I be rarefying?
must you be rarefying?
must he be rarefying?
must we be rarefying?
must you be rarefying?
must they be rarefying? 	must I have rarefied?
must you have rarefied?
must he have rarefied?
must we have rarefied?
must you have rarefied?
must they have rarefied? 	must I have been rarefying?
must you have been rarefying?
must he have been rarefying?
must we have been rarefying?
must you have been rarefying?
must they have been rarefying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not rarefy?
must you not rarefy?
must he not rarefy?
must we not rarefy?
must you not rarefy?
must they not rarefy? 	must I not be rarefying?
must you not be rarefying?
must he not be rarefying?
must we not be rarefying?
must you not be rarefying?
must they not be rarefying? 	must I not have rarefied?
must you not have rarefied?
must he not have rarefied?
must we not have rarefied?
must you not have rarefied?
must they not have rarefied? 	must I not have been rarefying?
must you not have been rarefying?
must he not have been rarefying?
must we not have been rarefying?
must you not have been rarefying?
must they not have been rarefying?