could approach
Verbo regular: approach - approached- approached

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could approach
you could approach
she could approach
we could approach
you could approach
they could approach 	I could be approaching
you could be approaching
she could be approaching
we could be approaching
you could be approaching
they could be approaching	I could have approached
you could have approached
she could have approached
we could have approached
you could have approached
they could have approached	I could have been approaching
you could have been approaching
she could have been approaching
we could have been approaching
you could have been approaching
they could have been approaching	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't approach
you couldn't approach
she couldn't approach
we couldn't approach
you couldn't approach
they couldn't approach 	I couldn't be approaching
you couldn't be approaching
she couldn't be approaching
we couldn't be approaching
you couldn't be approaching
they couldn't be approaching	I couldn't have approached
you couldn't have approached
she couldn't have approached
we couldn't have approached
you couldn't have approached
they couldn't have approached	I couldn't have been approaching
you couldn't have been approaching
she couldn't have been approaching
we couldn't have been approaching
you couldn't have been approaching
they couldn't have been approaching	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I approach?
could you approach?
could she approach?
could we approach?
could you approach?
could they approach? 	could I be approaching?
could you be approaching?
could she be approaching?
could we be approaching?
could you be approaching?
could they be approaching? 	could I have approached?
could you have approached?
could she have approached?
could we have approached?
could you have approached?
could they have approached? 	could I have been approaching?
could you have been approaching?
could she have been approaching?
could we have been approaching?
could you have been approaching?
could they have been approaching? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I approach?
couldn't you approach?
couldn't she approach?
couldn't we approach?
couldn't you approach?
couldn't they approach? 	couldn't I be approaching?
couldn't you be approaching?
couldn't she be approaching?
couldn't we be approaching?
couldn't you be approaching?
couldn't they be approaching? 	couldn't I have approached?
couldn't you have approached?
couldn't she have approached?
couldn't we have approached?
couldn't you have approached?
couldn't they have approached? 	couldn't I have been approaching?
couldn't you have been approaching?
couldn't she have been approaching?
couldn't we have been approaching?
couldn't you have been approaching?
couldn't they have been approaching?