I could circle you could circle he could circle we could circle you could circle they could circle
Forma com V-ing
I could be circling you could be circling he could be circling we could be circling you could be circling they could be circling
Perfeito
I could have circled you could have circled he could have circled we could have circled you could have circled they could have circled
Perfeito com V-ing
I could have been circling you could have been circling he could have been circling we could have been circling you could have been circling they could have been circling
Negação
Forma simple
I could not circle you could not circle he could not circle we could not circle you could not circle they could not circle
Forma com V-ing
I could not be circling you could not be circling he could not be circling we could not be circling you could not be circling they could not be circling
Perfeito
I could not have circled you could not have circled he could not have circled we could not have circled you could not have circled they could not have circled
Perfeito com V-ing
I could not have been circling you could not have been circling he could not have been circling we could not have been circling you could not have been circling they could not have been circling
Forma interrogativa
Forma simple
could I circle? could you circle? could he circle? could we circle? could you circle? could they circle?
Forma com V-ing
could I be circling? could you be circling? could he be circling? could we be circling? could you be circling? could they be circling?
Perfeito
could I have circled? could you have circled? could he have circled? could we have circled? could you have circled? could they have circled?
Perfeito com V-ing
could I have been circling? could you have been circling? could he have been circling? could we have been circling? could you have been circling? could they have been circling?
Forma interro-Negação
Forma simple
could I not circle? could you not circle? could he not circle? could we not circle? could you not circle? could they not circle?
Forma com V-ing
could I not be circling? could you not be circling? could he not be circling? could we not be circling? could you not be circling? could they not be circling?
Perfeito
could I not have circled? could you not have circled? could he not have circled? could we not have circled? could you not have circled? could they not have circled?
Perfeito com V-ing
could I not have been circling? could you not have been circling? could he not have been circling? could we not have been circling? could you not have been circling? could they not have been circling?