could tap-dance
Verbo regular: tap-dance - tap-danced- tap-danced

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could tap-dance
you could tap-dance
he could tap-dance
we could tap-dance
you could tap-dance
they could tap-dance 	I could be tap-dancing
you could be tap-dancing
he could be tap-dancing
we could be tap-dancing
you could be tap-dancing
they could be tap-dancing	I could have tap-danced
you could have tap-danced
he could have tap-danced
we could have tap-danced
you could have tap-danced
they could have tap-danced	I could have been tap-dancing
you could have been tap-dancing
he could have been tap-dancing
we could have been tap-dancing
you could have been tap-dancing
they could have been tap-dancing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not tap-dance
you could not tap-dance
he could not tap-dance
we could not tap-dance
you could not tap-dance
they could not tap-dance 	I could not be tap-dancing
you could not be tap-dancing
he could not be tap-dancing
we could not be tap-dancing
you could not be tap-dancing
they could not be tap-dancing	I could not have tap-danced
you could not have tap-danced
he could not have tap-danced
we could not have tap-danced
you could not have tap-danced
they could not have tap-danced	I could not have been tap-dancing
you could not have been tap-dancing
he could not have been tap-dancing
we could not have been tap-dancing
you could not have been tap-dancing
they could not have been tap-dancing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I tap-dance?
could you tap-dance?
could he tap-dance?
could we tap-dance?
could you tap-dance?
could they tap-dance? 	could I be tap-dancing?
could you be tap-dancing?
could he be tap-dancing?
could we be tap-dancing?
could you be tap-dancing?
could they be tap-dancing? 	could I have tap-danced?
could you have tap-danced?
could he have tap-danced?
could we have tap-danced?
could you have tap-danced?
could they have tap-danced? 	could I have been tap-dancing?
could you have been tap-dancing?
could he have been tap-dancing?
could we have been tap-dancing?
could you have been tap-dancing?
could they have been tap-dancing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not tap-dance?
could you not tap-dance?
could he not tap-dance?
could we not tap-dance?
could you not tap-dance?
could they not tap-dance? 	could I not be tap-dancing?
could you not be tap-dancing?
could he not be tap-dancing?
could we not be tap-dancing?
could you not be tap-dancing?
could they not be tap-dancing? 	could I not have tap-danced?
could you not have tap-danced?
could he not have tap-danced?
could we not have tap-danced?
could you not have tap-danced?
could they not have tap-danced? 	could I not have been tap-dancing?
could you not have been tap-dancing?
could he not have been tap-dancing?
could we not have been tap-dancing?
could you not have been tap-dancing?
could they not have been tap-dancing?