Conjugação do verbo inglês
COULD PLUMB

Verbo regular: plumb - plumbed - plumbed

Afirmação

Forma simple	Forma com 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
Perfeito	Perfeito com 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

Negação

Forma simple	Forma com V-ing
I couldn't plumb you couldn't plumb he couldn't plumb we couldn't plumb you couldn't plumb they couldn't plumb	I couldn't be plumbing you couldn't be plumbing he couldn't be plumbing we couldn't be plumbing you couldn't be plumbing they couldn't be plumbing
Perfeito	Perfeito com V-ing
I couldn't have plumbed you couldn't have plumbed he couldn't have plumbed we couldn't have plumbed you couldn't have plumbed they couldn't have plumbed	I couldn't have been plumbing you couldn't have been plumbing he couldn't have been plumbing we couldn't have been plumbing you couldn't have been plumbing they couldn't have been plumbing

Forma interrogativa

Forma simple	Forma com 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?
Perfeito	Perfeito com 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-Negação

Forma simple	Forma com V-ing
couldn't I plumb? couldn't you plumb? couldn't he plumb? couldn't we plumb? couldn't you plumb? couldn't they plumb?	couldn't I be plumbing? couldn't you be plumbing? couldn't he be plumbing? couldn't we be plumbing? couldn't you be plumbing? couldn't they be plumbing?
Perfeito	Perfeito com V-ing
couldn't I have plumbed? couldn't you have plumbed? couldn't he have plumbed? couldn't we have plumbed? couldn't you have plumbed? couldn't they have plumbed?	couldn't I have been plumbing? couldn't you have been plumbing? couldn't he have been plumbing? couldn't we have been plumbing? couldn't you have been plumbing? couldn't they have been plumbing?