could subscribe
Verbo regular: subscribe - subscribed- subscribed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito 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	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 	Perfeito 	Perfeito 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	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 	Perfeito 	Perfeito 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? 	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 	Perfeito 	Perfeito 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? 	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?