I could tiptoe you could tiptoe he could tiptoe we could tiptoe you could tiptoe they could tiptoe
Forma com V-ing
I could be tiptoing you could be tiptoing he could be tiptoing we could be tiptoing you could be tiptoing they could be tiptoing
Perfeito
I could have tiptoed you could have tiptoed he could have tiptoed we could have tiptoed you could have tiptoed they could have tiptoed
Perfeito com V-ing
I could have been tiptoing you could have been tiptoing he could have been tiptoing we could have been tiptoing you could have been tiptoing they could have been tiptoing
Negação
Forma simple
I could not tiptoe you could not tiptoe he could not tiptoe we could not tiptoe you could not tiptoe they could not tiptoe
Forma com V-ing
I could not be tiptoing you could not be tiptoing he could not be tiptoing we could not be tiptoing you could not be tiptoing they could not be tiptoing
Perfeito
I could not have tiptoed you could not have tiptoed he could not have tiptoed we could not have tiptoed you could not have tiptoed they could not have tiptoed
Perfeito com V-ing
I could not have been tiptoing you could not have been tiptoing he could not have been tiptoing we could not have been tiptoing you could not have been tiptoing they could not have been tiptoing
Forma interrogativa
Forma simple
could I tiptoe? could you tiptoe? could he tiptoe? could we tiptoe? could you tiptoe? could they tiptoe?
Forma com V-ing
could I be tiptoing? could you be tiptoing? could he be tiptoing? could we be tiptoing? could you be tiptoing? could they be tiptoing?
Perfeito
could I have tiptoed? could you have tiptoed? could he have tiptoed? could we have tiptoed? could you have tiptoed? could they have tiptoed?
Perfeito com V-ing
could I have been tiptoing? could you have been tiptoing? could he have been tiptoing? could we have been tiptoing? could you have been tiptoing? could they have been tiptoing?
Forma interro-Negação
Forma simple
could I not tiptoe? could you not tiptoe? could he not tiptoe? could we not tiptoe? could you not tiptoe? could they not tiptoe?
Forma com V-ing
could I not be tiptoing? could you not be tiptoing? could he not be tiptoing? could we not be tiptoing? could you not be tiptoing? could they not be tiptoing?
Perfeito
could I not have tiptoed? could you not have tiptoed? could he not have tiptoed? could we not have tiptoed? could you not have tiptoed? could they not have tiptoed?
Perfeito com V-ing
could I not have been tiptoing? could you not have been tiptoing? could he not have been tiptoing? could we not have been tiptoing? could you not have been tiptoing? could they not have been tiptoing?