Conjugación del verbo inglés
COULD PLUMB

Verbo regular: plumb - plumbed - plumbed

Afirmación

Forma simple	Forma con V-ing
I could plumb you could plumb he could plumb we could plumb you could plumb they could plumb	I could be plumbing you could be plumbing he could be plumbing we could be plumbing you could be plumbing they could be plumbing
Perfecto	Perfecto con V-ing
I could have plumbed you could have plumbed he could have plumbed we could have plumbed you could have plumbed they could have plumbed	I could have been plumbing you could have been plumbing he could have been plumbing we could have been plumbing you could have been plumbing they could have been plumbing

Negación

Forma simple	Forma con V-ing
I could not plumb you could not plumb he could not plumb we could not plumb you could not plumb they could not plumb	I could not be plumbing you could not be plumbing he could not be plumbing we could not be plumbing you could not be plumbing they could not be plumbing
Perfecto	Perfecto con V-ing
I could not have plumbed you could not have plumbed he could not have plumbed we could not have plumbed you could not have plumbed they could not have plumbed	I could not have been plumbing you could not have been plumbing he could not have been plumbing we could not have been plumbing you could not have been plumbing they could not have been plumbing

Forma interrogativa

Forma simple	Forma con V-ing
could I plumb? could you plumb? could he plumb? could we plumb? could you plumb? could they plumb?	could I be plumbing? could you be plumbing? could he be plumbing? could we be plumbing? could you be plumbing? could they be plumbing?
Perfecto	Perfecto con V-ing
could I have plumbed? could you have plumbed? could he have plumbed? could we have plumbed? could you have plumbed? could they have plumbed?	could I have been plumbing? could you have been plumbing? could he have been plumbing? could we have been plumbing? could you have been plumbing? could they have been plumbing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not plumb? could you not plumb? could he not plumb? could we not plumb? could you not plumb? could they not plumb?	could I not be plumbing? could you not be plumbing? could he not be plumbing? could we not be plumbing? could you not be plumbing? could they not be plumbing?
Perfecto	Perfecto con V-ing
could I not have plumbed? could you not have plumbed? could he not have plumbed? could we not have plumbed? could you not have plumbed? could they not have plumbed?	could I not have been plumbing? could you not have been plumbing? could he not have been plumbing? could we not have been plumbing? could you not have been plumbing? could they not have been plumbing?