could sever
Verbo regular: sever - severed- severed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could sever
you could sever
he could sever
we could sever
you could sever
they could sever 	I could be severing
you could be severing
he could be severing
we could be severing
you could be severing
they could be severing	I could have severed
you could have severed
he could have severed
we could have severed
you could have severed
they could have severed	I could have been severing
you could have been severing
he could have been severing
we could have been severing
you could have been severing
they could have been severing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not sever
you could not sever
he could not sever
we could not sever
you could not sever
they could not sever 	I could not be severing
you could not be severing
he could not be severing
we could not be severing
you could not be severing
they could not be severing	I could not have severed
you could not have severed
he could not have severed
we could not have severed
you could not have severed
they could not have severed	I could not have been severing
you could not have been severing
he could not have been severing
we could not have been severing
you could not have been severing
they could not have been severing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I sever?
could you sever?
could he sever?
could we sever?
could you sever?
could they sever? 	could I be severing?
could you be severing?
could he be severing?
could we be severing?
could you be severing?
could they be severing? 	could I have severed?
could you have severed?
could he have severed?
could we have severed?
could you have severed?
could they have severed? 	could I have been severing?
could you have been severing?
could he have been severing?
could we have been severing?
could you have been severing?
could they have been severing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not sever?
could you not sever?
could he not sever?
could we not sever?
could you not sever?
could they not sever? 	could I not be severing?
could you not be severing?
could he not be severing?
could we not be severing?
could you not be severing?
could they not be severing? 	could I not have severed?
could you not have severed?
could he not have severed?
could we not have severed?
could you not have severed?
could they not have severed? 	could I not have been severing?
could you not have been severing?
could he not have been severing?
could we not have been severing?
could you not have been severing?
could they not have been severing?