could shuffle
Verbo regular: shuffle - shuffled- shuffled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could shuffle
you could shuffle
he could shuffle
we could shuffle
you could shuffle
they could shuffle 	I could be shuffling
you could be shuffling
he could be shuffling
we could be shuffling
you could be shuffling
they could be shuffling	I could have shuffled
you could have shuffled
he 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
he could have been shuffling
we could have been shuffling
you could have been shuffling
they could have been shuffling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't shuffle
you couldn't shuffle
he couldn't shuffle
we couldn't shuffle
you couldn't shuffle
they couldn't shuffle 	I couldn't be shuffling
you couldn't be shuffling
he couldn't be shuffling
we couldn't be shuffling
you couldn't be shuffling
they couldn't be shuffling	I couldn't have shuffled
you couldn't have shuffled
he couldn't have shuffled
we couldn't have shuffled
you couldn't have shuffled
they couldn't have shuffled	I couldn't have been shuffling
you couldn't have been shuffling
he couldn't have been shuffling
we couldn't have been shuffling
you couldn't have been shuffling
they couldn't have been shuffling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I shuffle?
could you shuffle?
could he shuffle?
could we shuffle?
could you shuffle?
could they shuffle? 	could I be shuffling?
could you be shuffling?
could he be shuffling?
could we be shuffling?
could you be shuffling?
could they be shuffling? 	could I have shuffled?
could you have shuffled?
could he 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 he have been shuffling?
could we have been shuffling?
could you have been shuffling?
could they have been shuffling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I shuffle?
couldn't you shuffle?
couldn't he shuffle?
couldn't we shuffle?
couldn't you shuffle?
couldn't they shuffle? 	couldn't I be shuffling?
couldn't you be shuffling?
couldn't he be shuffling?
couldn't we be shuffling?
couldn't you be shuffling?
couldn't they be shuffling? 	couldn't I have shuffled?
couldn't you have shuffled?
couldn't he have shuffled?
couldn't we have shuffled?
couldn't you have shuffled?
couldn't they have shuffled? 	couldn't I have been shuffling?
couldn't you have been shuffling?
couldn't he have been shuffling?
couldn't we have been shuffling?
couldn't you have been shuffling?
couldn't they have been shuffling?