could uppercase
Verbo regular: uppercase - uppercased- uppercased

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could uppercase
you could uppercase
he could uppercase
we could uppercase
you could uppercase
they could uppercase 	I could be uppercasing
you could be uppercasing
he could be uppercasing
we could be uppercasing
you could be uppercasing
they could be uppercasing	I could have uppercased
you could have uppercased
he could have uppercased
we could have uppercased
you could have uppercased
they could have uppercased	I could have been uppercasing
you could have been uppercasing
he could have been uppercasing
we could have been uppercasing
you could have been uppercasing
they could have been uppercasing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't uppercase
you couldn't uppercase
he couldn't uppercase
we couldn't uppercase
you couldn't uppercase
they couldn't uppercase 	I couldn't be uppercasing
you couldn't be uppercasing
he couldn't be uppercasing
we couldn't be uppercasing
you couldn't be uppercasing
they couldn't be uppercasing	I couldn't have uppercased
you couldn't have uppercased
he couldn't have uppercased
we couldn't have uppercased
you couldn't have uppercased
they couldn't have uppercased	I couldn't have been uppercasing
you couldn't have been uppercasing
he couldn't have been uppercasing
we couldn't have been uppercasing
you couldn't have been uppercasing
they couldn't have been uppercasing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I uppercase?
could you uppercase?
could he uppercase?
could we uppercase?
could you uppercase?
could they uppercase? 	could I be uppercasing?
could you be uppercasing?
could he be uppercasing?
could we be uppercasing?
could you be uppercasing?
could they be uppercasing? 	could I have uppercased?
could you have uppercased?
could he have uppercased?
could we have uppercased?
could you have uppercased?
could they have uppercased? 	could I have been uppercasing?
could you have been uppercasing?
could he have been uppercasing?
could we have been uppercasing?
could you have been uppercasing?
could they have been uppercasing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I uppercase?
couldn't you uppercase?
couldn't he uppercase?
couldn't we uppercase?
couldn't you uppercase?
couldn't they uppercase? 	couldn't I be uppercasing?
couldn't you be uppercasing?
couldn't he be uppercasing?
couldn't we be uppercasing?
couldn't you be uppercasing?
couldn't they be uppercasing? 	couldn't I have uppercased?
couldn't you have uppercased?
couldn't he have uppercased?
couldn't we have uppercased?
couldn't you have uppercased?
couldn't they have uppercased? 	couldn't I have been uppercasing?
couldn't you have been uppercasing?
couldn't he have been uppercasing?
couldn't we have been uppercasing?
couldn't you have been uppercasing?
couldn't they have been uppercasing?