could bolt
Verbo regular: bolt - bolted- bolted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could bolt
you could bolt
he could bolt
we could bolt
you could bolt
they could bolt 	I could be bolting
you could be bolting
he could be bolting
we could be bolting
you could be bolting
they could be bolting	I could have bolted
you could have bolted
he could have bolted
we could have bolted
you could have bolted
they could have bolted	I could have been bolting
you could have been bolting
he could have been bolting
we could have been bolting
you could have been bolting
they could have been bolting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't bolt
you couldn't bolt
he couldn't bolt
we couldn't bolt
you couldn't bolt
they couldn't bolt 	I couldn't be bolting
you couldn't be bolting
he couldn't be bolting
we couldn't be bolting
you couldn't be bolting
they couldn't be bolting	I couldn't have bolted
you couldn't have bolted
he couldn't have bolted
we couldn't have bolted
you couldn't have bolted
they couldn't have bolted	I couldn't have been bolting
you couldn't have been bolting
he couldn't have been bolting
we couldn't have been bolting
you couldn't have been bolting
they couldn't have been bolting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I bolt?
could you bolt?
could he bolt?
could we bolt?
could you bolt?
could they bolt? 	could I be bolting?
could you be bolting?
could he be bolting?
could we be bolting?
could you be bolting?
could they be bolting? 	could I have bolted?
could you have bolted?
could he have bolted?
could we have bolted?
could you have bolted?
could they have bolted? 	could I have been bolting?
could you have been bolting?
could he have been bolting?
could we have been bolting?
could you have been bolting?
could they have been bolting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I bolt?
couldn't you bolt?
couldn't he bolt?
couldn't we bolt?
couldn't you bolt?
couldn't they bolt? 	couldn't I be bolting?
couldn't you be bolting?
couldn't he be bolting?
couldn't we be bolting?
couldn't you be bolting?
couldn't they be bolting? 	couldn't I have bolted?
couldn't you have bolted?
couldn't he have bolted?
couldn't we have bolted?
couldn't you have bolted?
couldn't they have bolted? 	couldn't I have been bolting?
couldn't you have been bolting?
couldn't he have been bolting?
couldn't we have been bolting?
couldn't you have been bolting?
couldn't they have been bolting?