Conjugación del verbo inglés
COULD CHUFF

Verbo regular: chuff - chuffed - chuffed

Afirmación

Forma simple	Forma con V-ing
I could chuff you could chuff she could chuff we could chuff you could chuff they could chuff	I could be chuffing you could be chuffing she could be chuffing we could be chuffing you could be chuffing they could be chuffing
Perfecto	Perfecto con V-ing
I could have chuffed you could have chuffed she could have chuffed we could have chuffed you could have chuffed they could have chuffed	I could have been chuffing you could have been chuffing she could have been chuffing we could have been chuffing you could have been chuffing they could have been chuffing

Negación

Forma simple	Forma con V-ing
I could not chuff you could not chuff she could not chuff we could not chuff you could not chuff they could not chuff	I could not be chuffing you could not be chuffing she could not be chuffing we could not be chuffing you could not be chuffing they could not be chuffing
Perfecto	Perfecto con V-ing
I could not have chuffed you could not have chuffed she could not have chuffed we could not have chuffed you could not have chuffed they could not have chuffed	I could not have been chuffing you could not have been chuffing she could not have been chuffing we could not have been chuffing you could not have been chuffing they could not have been chuffing

Forma interrogativa

Forma simple	Forma con V-ing
could I chuff? could you chuff? could she chuff? could we chuff? could you chuff? could they chuff?	could I be chuffing? could you be chuffing? could she be chuffing? could we be chuffing? could you be chuffing? could they be chuffing?
Perfecto	Perfecto con V-ing
could I have chuffed? could you have chuffed? could she have chuffed? could we have chuffed? could you have chuffed? could they have chuffed?	could I have been chuffing? could you have been chuffing? could she have been chuffing? could we have been chuffing? could you have been chuffing? could they have been chuffing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not chuff? could you not chuff? could she not chuff? could we not chuff? could you not chuff? could they not chuff?	could I not be chuffing? could you not be chuffing? could she not be chuffing? could we not be chuffing? could you not be chuffing? could they not be chuffing?
Perfecto	Perfecto con V-ing
could I not have chuffed? could you not have chuffed? could she not have chuffed? could we not have chuffed? could you not have chuffed? could they not have chuffed?	could I not have been chuffing? could you not have been chuffing? could she not have been chuffing? could we not have been chuffing? could you not have been chuffing? could they not have been chuffing?