could shuffle
Verbo regular: shuffle - shuffled- shuffled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could shuffle
you could shuffle
she could shuffle
we could shuffle
you could shuffle
they could shuffle 	I could be shuffling
you could be shuffling
she could be shuffling
we could be shuffling
you could be shuffling
they could be shuffling	I could have shuffled
you could have shuffled
she could have shuffled
we could have shuffled
you could have shuffled
they could have shuffled	I could have been shuffling
you could have been shuffling
she could have been shuffling
we could have been shuffling
you could have been shuffling
they could have been shuffling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not shuffle
you could not shuffle
she could not shuffle
we could not shuffle
you could not shuffle
they could not shuffle 	I could not be shuffling
you could not be shuffling
she could not be shuffling
we could not be shuffling
you could not be shuffling
they could not be shuffling	I could not have shuffled
you could not have shuffled
she could not have shuffled
we could not have shuffled
you could not have shuffled
they could not have shuffled	I could not have been shuffling
you could not have been shuffling
she could not have been shuffling
we could not have been shuffling
you could not have been shuffling
they could not have been shuffling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I shuffle?
could you shuffle?
could she shuffle?
could we shuffle?
could you shuffle?
could they shuffle? 	could I be shuffling?
could you be shuffling?
could she be shuffling?
could we be shuffling?
could you be shuffling?
could they be shuffling? 	could I have shuffled?
could you have shuffled?
could she have shuffled?
could we have shuffled?
could you have shuffled?
could they have shuffled? 	could I have been shuffling?
could you have been shuffling?
could she have been shuffling?
could we have been shuffling?
could you have been shuffling?
could they have been shuffling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not shuffle?
could you not shuffle?
could she not shuffle?
could we not shuffle?
could you not shuffle?
could they not shuffle? 	could I not be shuffling?
could you not be shuffling?
could she not be shuffling?
could we not be shuffling?
could you not be shuffling?
could they not be shuffling? 	could I not have shuffled?
could you not have shuffled?
could she not have shuffled?
could we not have shuffled?
could you not have shuffled?
could they not have shuffled? 	could I not have been shuffling?
could you not have been shuffling?
could she not have been shuffling?
could we not have been shuffling?
could you not have been shuffling?
could they not have been shuffling?