Conjugação do verbo inglês
COULD SUBSCRIBE

Verbo regular: subscribe - subscribed - subscribed

Afirmação

Forma simple	Forma com V-ing
I could subscribe you could subscribe he could subscribe we could subscribe you could subscribe they could subscribe	I could be subscribing you could be subscribing he could be subscribing we could be subscribing you could be subscribing they could be subscribing
Perfeito	Perfeito com V-ing
I could have subscribed you could have subscribed he could have subscribed we could have subscribed you could have subscribed they could have subscribed	I could have been subscribing you could have been subscribing he could have been subscribing we could have been subscribing you could have been subscribing they could have been subscribing

Negação

Forma simple	Forma com V-ing
I couldn't subscribe you couldn't subscribe he couldn't subscribe we couldn't subscribe you couldn't subscribe they couldn't subscribe	I couldn't be subscribing you couldn't be subscribing he couldn't be subscribing we couldn't be subscribing you couldn't be subscribing they couldn't be subscribing
Perfeito	Perfeito com V-ing
I couldn't have subscribed you couldn't have subscribed he couldn't have subscribed we couldn't have subscribed you couldn't have subscribed they couldn't have subscribed	I couldn't have been subscribing you couldn't have been subscribing he couldn't have been subscribing we couldn't have been subscribing you couldn't have been subscribing they couldn't have been subscribing

Forma interrogativa

Forma simple	Forma com V-ing
could I subscribe? could you subscribe? could he subscribe? could we subscribe? could you subscribe? could they subscribe?	could I be subscribing? could you be subscribing? could he be subscribing? could we be subscribing? could you be subscribing? could they be subscribing?
Perfeito	Perfeito com V-ing
could I have subscribed? could you have subscribed? could he have subscribed? could we have subscribed? could you have subscribed? could they have subscribed?	could I have been subscribing? could you have been subscribing? could he have been subscribing? could we have been subscribing? could you have been subscribing? could they have been subscribing?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I subscribe? couldn't you subscribe? couldn't he subscribe? couldn't we subscribe? couldn't you subscribe? couldn't they subscribe?	couldn't I be subscribing? couldn't you be subscribing? couldn't he be subscribing? couldn't we be subscribing? couldn't you be subscribing? couldn't they be subscribing?
Perfeito	Perfeito com V-ing
couldn't I have subscribed? couldn't you have subscribed? couldn't he have subscribed? couldn't we have subscribed? couldn't you have subscribed? couldn't they have subscribed?	couldn't I have been subscribing? couldn't you have been subscribing? couldn't he have been subscribing? couldn't we have been subscribing? couldn't you have been subscribing? couldn't they have been subscribing?