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
she could sever
we could sever
you could sever
they could sever 	I could be severing
you could be severing
she could be severing
we could be severing
you could be severing
they could be severing	I could have severed
you could have severed
she 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
she 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
she 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
she 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
she 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
she 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 she sever?
could we sever?
could you sever?
could they sever? 	could I be severing?
could you be severing?
could she be severing?
could we be severing?
could you be severing?
could they be severing? 	could I have severed?
could you have severed?
could she 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 she 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 she 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 she 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 she 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 she not have been severing?
could we not have been severing?
could you not have been severing?
could they not have been severing?