could desulferise
Verbo regular: desulferise - desulferised- desulferised

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could desulferise
you could desulferise
he could desulferise
we could desulferise
you could desulferise
they could desulferise 	I could be desulferising
you could be desulferising
he could be desulferising
we could be desulferising
you could be desulferising
they could be desulferising	I could have desulferised
you could have desulferised
he could have desulferised
we could have desulferised
you could have desulferised
they could have desulferised	I could have been desulferising
you could have been desulferising
he could have been desulferising
we could have been desulferising
you could have been desulferising
they could have been desulferising	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not desulferise
you could not desulferise
he could not desulferise
we could not desulferise
you could not desulferise
they could not desulferise 	I could not be desulferising
you could not be desulferising
he could not be desulferising
we could not be desulferising
you could not be desulferising
they could not be desulferising	I could not have desulferised
you could not have desulferised
he could not have desulferised
we could not have desulferised
you could not have desulferised
they could not have desulferised	I could not have been desulferising
you could not have been desulferising
he could not have been desulferising
we could not have been desulferising
you could not have been desulferising
they could not have been desulferising	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I desulferise?
could you desulferise?
could he desulferise?
could we desulferise?
could you desulferise?
could they desulferise? 	could I be desulferising?
could you be desulferising?
could he be desulferising?
could we be desulferising?
could you be desulferising?
could they be desulferising? 	could I have desulferised?
could you have desulferised?
could he have desulferised?
could we have desulferised?
could you have desulferised?
could they have desulferised? 	could I have been desulferising?
could you have been desulferising?
could he have been desulferising?
could we have been desulferising?
could you have been desulferising?
could they have been desulferising? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not desulferise?
could you not desulferise?
could he not desulferise?
could we not desulferise?
could you not desulferise?
could they not desulferise? 	could I not be desulferising?
could you not be desulferising?
could he not be desulferising?
could we not be desulferising?
could you not be desulferising?
could they not be desulferising? 	could I not have desulferised?
could you not have desulferised?
could he not have desulferised?
could we not have desulferised?
could you not have desulferised?
could they not have desulferised? 	could I not have been desulferising?
could you not have been desulferising?
could he not have been desulferising?
could we not have been desulferising?
could you not have been desulferising?
could they not have been desulferising?