could fault
Verbo regular: fault - faulted- faulted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could fault
you could fault
he could fault
we could fault
you could fault
they could fault 	I could be faulting
you could be faulting
he could be faulting
we could be faulting
you could be faulting
they could be faulting	I could have faulted
you could have faulted
he could have faulted
we could have faulted
you could have faulted
they could have faulted	I could have been faulting
you could have been faulting
he could have been faulting
we could have been faulting
you could have been faulting
they could have been faulting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't fault
you couldn't fault
he couldn't fault
we couldn't fault
you couldn't fault
they couldn't fault 	I couldn't be faulting
you couldn't be faulting
he couldn't be faulting
we couldn't be faulting
you couldn't be faulting
they couldn't be faulting	I couldn't have faulted
you couldn't have faulted
he couldn't have faulted
we couldn't have faulted
you couldn't have faulted
they couldn't have faulted	I couldn't have been faulting
you couldn't have been faulting
he couldn't have been faulting
we couldn't have been faulting
you couldn't have been faulting
they couldn't have been faulting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I fault?
could you fault?
could he fault?
could we fault?
could you fault?
could they fault? 	could I be faulting?
could you be faulting?
could he be faulting?
could we be faulting?
could you be faulting?
could they be faulting? 	could I have faulted?
could you have faulted?
could he have faulted?
could we have faulted?
could you have faulted?
could they have faulted? 	could I have been faulting?
could you have been faulting?
could he have been faulting?
could we have been faulting?
could you have been faulting?
could they have been faulting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I fault?
couldn't you fault?
couldn't he fault?
couldn't we fault?
couldn't you fault?
couldn't they fault? 	couldn't I be faulting?
couldn't you be faulting?
couldn't he be faulting?
couldn't we be faulting?
couldn't you be faulting?
couldn't they be faulting? 	couldn't I have faulted?
couldn't you have faulted?
couldn't he have faulted?
couldn't we have faulted?
couldn't you have faulted?
couldn't they have faulted? 	couldn't I have been faulting?
couldn't you have been faulting?
couldn't he have been faulting?
couldn't we have been faulting?
couldn't you have been faulting?
couldn't they have been faulting?