could inter
Verbo regular: inter - interred- interred

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could inter
you could inter
he could inter
we could inter
you could inter
they could inter 	I could be interring
you could be interring
he could be interring
we could be interring
you could be interring
they could be interring	I could have interred
you could have interred
he could have interred
we could have interred
you could have interred
they could have interred	I could have been interring
you could have been interring
he could have been interring
we could have been interring
you could have been interring
they could have been interring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't inter
you couldn't inter
he couldn't inter
we couldn't inter
you couldn't inter
they couldn't inter 	I couldn't be interring
you couldn't be interring
he couldn't be interring
we couldn't be interring
you couldn't be interring
they couldn't be interring	I couldn't have interred
you couldn't have interred
he couldn't have interred
we couldn't have interred
you couldn't have interred
they couldn't have interred	I couldn't have been interring
you couldn't have been interring
he couldn't have been interring
we couldn't have been interring
you couldn't have been interring
they couldn't have been interring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I inter?
could you inter?
could he inter?
could we inter?
could you inter?
could they inter? 	could I be interring?
could you be interring?
could he be interring?
could we be interring?
could you be interring?
could they be interring? 	could I have interred?
could you have interred?
could he have interred?
could we have interred?
could you have interred?
could they have interred? 	could I have been interring?
could you have been interring?
could he have been interring?
could we have been interring?
could you have been interring?
could they have been interring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I inter?
couldn't you inter?
couldn't he inter?
couldn't we inter?
couldn't you inter?
couldn't they inter? 	couldn't I be interring?
couldn't you be interring?
couldn't he be interring?
couldn't we be interring?
couldn't you be interring?
couldn't they be interring? 	couldn't I have interred?
couldn't you have interred?
couldn't he have interred?
couldn't we have interred?
couldn't you have interred?
couldn't they have interred? 	couldn't I have been interring?
couldn't you have been interring?
couldn't he have been interring?
couldn't we have been interring?
couldn't you have been interring?
couldn't they have been interring?