could ta
Verbo regular: ta - taed- taed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could ta
you could ta
he could ta
we could ta
you could ta
they could ta 	I could be taing
you could be taing
he could be taing
we could be taing
you could be taing
they could be taing	I could have taed
you could have taed
he could have taed
we could have taed
you could have taed
they could have taed	I could have been taing
you could have been taing
he could have been taing
we could have been taing
you could have been taing
they could have been taing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't ta
you couldn't ta
he couldn't ta
we couldn't ta
you couldn't ta
they couldn't ta 	I couldn't be taing
you couldn't be taing
he couldn't be taing
we couldn't be taing
you couldn't be taing
they couldn't be taing	I couldn't have taed
you couldn't have taed
he couldn't have taed
we couldn't have taed
you couldn't have taed
they couldn't have taed	I couldn't have been taing
you couldn't have been taing
he couldn't have been taing
we couldn't have been taing
you couldn't have been taing
they couldn't have been taing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I ta?
could you ta?
could he ta?
could we ta?
could you ta?
could they ta? 	could I be taing?
could you be taing?
could he be taing?
could we be taing?
could you be taing?
could they be taing? 	could I have taed?
could you have taed?
could he have taed?
could we have taed?
could you have taed?
could they have taed? 	could I have been taing?
could you have been taing?
could he have been taing?
could we have been taing?
could you have been taing?
could they have been taing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I ta?
couldn't you ta?
couldn't he ta?
couldn't we ta?
couldn't you ta?
couldn't they ta? 	couldn't I be taing?
couldn't you be taing?
couldn't he be taing?
couldn't we be taing?
couldn't you be taing?
couldn't they be taing? 	couldn't I have taed?
couldn't you have taed?
couldn't he have taed?
couldn't we have taed?
couldn't you have taed?
couldn't they have taed? 	couldn't I have been taing?
couldn't you have been taing?
couldn't he have been taing?
couldn't we have been taing?
couldn't you have been taing?
couldn't they have been taing?