could blur
Verbo regular: blur - blurred- blurred

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could blur
you could blur
he could blur
we could blur
you could blur
they could blur 	I could be blurring
you could be blurring
he could be blurring
we could be blurring
you could be blurring
they could be blurring	I could have blurred
you could have blurred
he could have blurred
we could have blurred
you could have blurred
they could have blurred	I could have been blurring
you could have been blurring
he could have been blurring
we could have been blurring
you could have been blurring
they could have been blurring	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't blur
you couldn't blur
he couldn't blur
we couldn't blur
you couldn't blur
they couldn't blur 	I couldn't be blurring
you couldn't be blurring
he couldn't be blurring
we couldn't be blurring
you couldn't be blurring
they couldn't be blurring	I couldn't have blurred
you couldn't have blurred
he couldn't have blurred
we couldn't have blurred
you couldn't have blurred
they couldn't have blurred	I couldn't have been blurring
you couldn't have been blurring
he couldn't have been blurring
we couldn't have been blurring
you couldn't have been blurring
they couldn't have been blurring	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I blur?
could you blur?
could he blur?
could we blur?
could you blur?
could they blur? 	could I be blurring?
could you be blurring?
could he be blurring?
could we be blurring?
could you be blurring?
could they be blurring? 	could I have blurred?
could you have blurred?
could he have blurred?
could we have blurred?
could you have blurred?
could they have blurred? 	could I have been blurring?
could you have been blurring?
could he have been blurring?
could we have been blurring?
could you have been blurring?
could they have been blurring? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I blur?
couldn't you blur?
couldn't he blur?
couldn't we blur?
couldn't you blur?
couldn't they blur? 	couldn't I be blurring?
couldn't you be blurring?
couldn't he be blurring?
couldn't we be blurring?
couldn't you be blurring?
couldn't they be blurring? 	couldn't I have blurred?
couldn't you have blurred?
couldn't he have blurred?
couldn't we have blurred?
couldn't you have blurred?
couldn't they have blurred? 	couldn't I have been blurring?
couldn't you have been blurring?
couldn't he have been blurring?
couldn't we have been blurring?
couldn't you have been blurring?
couldn't they have been blurring?