Conjugación del verbo inglés
COULD VALVE

Verbo regular: valve - valved - valved

Afirmación

Forma simple	Forma con V-ing
I could valve you could valve he could valve we could valve you could valve they could valve	I could be valving you could be valving he could be valving we could be valving you could be valving they could be valving
Perfecto	Perfecto con V-ing
I could have valved you could have valved he could have valved we could have valved you could have valved they could have valved	I could have been valving you could have been valving he could have been valving we could have been valving you could have been valving they could have been valving

Negación

Forma simple	Forma con V-ing
I could not valve you could not valve he could not valve we could not valve you could not valve they could not valve	I could not be valving you could not be valving he could not be valving we could not be valving you could not be valving they could not be valving
Perfecto	Perfecto con V-ing
I could not have valved you could not have valved he could not have valved we could not have valved you could not have valved they could not have valved	I could not have been valving you could not have been valving he could not have been valving we could not have been valving you could not have been valving they could not have been valving

Forma interrogativa

Forma simple	Forma con V-ing
could I valve? could you valve? could he valve? could we valve? could you valve? could they valve?	could I be valving? could you be valving? could he be valving? could we be valving? could you be valving? could they be valving?
Perfecto	Perfecto con V-ing
could I have valved? could you have valved? could he have valved? could we have valved? could you have valved? could they have valved?	could I have been valving? could you have been valving? could he have been valving? could we have been valving? could you have been valving? could they have been valving?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not valve? could you not valve? could he not valve? could we not valve? could you not valve? could they not valve?	could I not be valving? could you not be valving? could he not be valving? could we not be valving? could you not be valving? could they not be valving?
Perfecto	Perfecto con V-ing
could I not have valved? could you not have valved? could he not have valved? could we not have valved? could you not have valved? could they not have valved?	could I not have been valving? could you not have been valving? could he not have been valving? could we not have been valving? could you not have been valving? could they not have been valving?