Conjugación del verbo inglés
COULD PLOUGH

Verbo regular: plough - ploughed - ploughed

Afirmación

Forma simple	Forma con V-ing
I could plough you could plough he could plough we could plough you could plough they could plough	I could be ploughing you could be ploughing he could be ploughing we could be ploughing you could be ploughing they could be ploughing
Perfecto	Perfecto con V-ing
I could have ploughed you could have ploughed he could have ploughed we could have ploughed you could have ploughed they could have ploughed	I could have been ploughing you could have been ploughing he could have been ploughing we could have been ploughing you could have been ploughing they could have been ploughing

Negación

Forma simple	Forma con V-ing
I could not plough you could not plough he could not plough we could not plough you could not plough they could not plough	I could not be ploughing you could not be ploughing he could not be ploughing we could not be ploughing you could not be ploughing they could not be ploughing
Perfecto	Perfecto con V-ing
I could not have ploughed you could not have ploughed he could not have ploughed we could not have ploughed you could not have ploughed they could not have ploughed	I could not have been ploughing you could not have been ploughing he could not have been ploughing we could not have been ploughing you could not have been ploughing they could not have been ploughing

Forma interrogativa

Forma simple	Forma con V-ing
could I plough? could you plough? could he plough? could we plough? could you plough? could they plough?	could I be ploughing? could you be ploughing? could he be ploughing? could we be ploughing? could you be ploughing? could they be ploughing?
Perfecto	Perfecto con V-ing
could I have ploughed? could you have ploughed? could he have ploughed? could we have ploughed? could you have ploughed? could they have ploughed?	could I have been ploughing? could you have been ploughing? could he have been ploughing? could we have been ploughing? could you have been ploughing? could they have been ploughing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not plough? could you not plough? could he not plough? could we not plough? could you not plough? could they not plough?	could I not be ploughing? could you not be ploughing? could he not be ploughing? could we not be ploughing? could you not be ploughing? could they not be ploughing?
Perfecto	Perfecto con V-ing
could I not have ploughed? could you not have ploughed? could he not have ploughed? could we not have ploughed? could you not have ploughed? could they not have ploughed?	could I not have been ploughing? could you not have been ploughing? could he not have been ploughing? could we not have been ploughing? could you not have been ploughing? could they not have been ploughing?