Conjugación del verbo inglés
COULD GRAFT

Verbo regular: graft - grafted - grafted

Afirmación

Forma simple	Forma con V-ing
I could graft you could graft he could graft we could graft you could graft they could graft	I could be grafting you could be grafting he could be grafting we could be grafting you could be grafting they could be grafting
Perfecto	Perfecto con V-ing
I could have grafted you could have grafted he could have grafted we could have grafted you could have grafted they could have grafted	I could have been grafting you could have been grafting he could have been grafting we could have been grafting you could have been grafting they could have been grafting

Negación

Forma simple	Forma con V-ing
I could not graft you could not graft he could not graft we could not graft you could not graft they could not graft	I could not be grafting you could not be grafting he could not be grafting we could not be grafting you could not be grafting they could not be grafting
Perfecto	Perfecto con V-ing
I could not have grafted you could not have grafted he could not have grafted we could not have grafted you could not have grafted they could not have grafted	I could not have been grafting you could not have been grafting he could not have been grafting we could not have been grafting you could not have been grafting they could not have been grafting

Forma interrogativa

Forma simple	Forma con V-ing
could I graft? could you graft? could he graft? could we graft? could you graft? could they graft?	could I be grafting? could you be grafting? could he be grafting? could we be grafting? could you be grafting? could they be grafting?
Perfecto	Perfecto con V-ing
could I have grafted? could you have grafted? could he have grafted? could we have grafted? could you have grafted? could they have grafted?	could I have been grafting? could you have been grafting? could he have been grafting? could we have been grafting? could you have been grafting? could they have been grafting?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not graft? could you not graft? could he not graft? could we not graft? could you not graft? could they not graft?	could I not be grafting? could you not be grafting? could he not be grafting? could we not be grafting? could you not be grafting? could they not be grafting?
Perfecto	Perfecto con V-ing
could I not have grafted? could you not have grafted? could he not have grafted? could we not have grafted? could you not have grafted? could they not have grafted?	could I not have been grafting? could you not have been grafting? could he not have been grafting? could we not have been grafting? could you not have been grafting? could they not have been grafting?