could darn
Verbo regular: darn - darned- darned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could darn
you could darn
he could darn
we could darn
you could darn
they could darn 	I could be darning
you could be darning
he could be darning
we could be darning
you could be darning
they could be darning	I could have darned
you could have darned
he could have darned
we could have darned
you could have darned
they could have darned	I could have been darning
you could have been darning
he could have been darning
we could have been darning
you could have been darning
they could have been darning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not darn
you could not darn
he could not darn
we could not darn
you could not darn
they could not darn 	I could not be darning
you could not be darning
he could not be darning
we could not be darning
you could not be darning
they could not be darning	I could not have darned
you could not have darned
he could not have darned
we could not have darned
you could not have darned
they could not have darned	I could not have been darning
you could not have been darning
he could not have been darning
we could not have been darning
you could not have been darning
they could not have been darning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I darn?
could you darn?
could he darn?
could we darn?
could you darn?
could they darn? 	could I be darning?
could you be darning?
could he be darning?
could we be darning?
could you be darning?
could they be darning? 	could I have darned?
could you have darned?
could he have darned?
could we have darned?
could you have darned?
could they have darned? 	could I have been darning?
could you have been darning?
could he have been darning?
could we have been darning?
could you have been darning?
could they have been darning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not darn?
could you not darn?
could he not darn?
could we not darn?
could you not darn?
could they not darn? 	could I not be darning?
could you not be darning?
could he not be darning?
could we not be darning?
could you not be darning?
could they not be darning? 	could I not have darned?
could you not have darned?
could he not have darned?
could we not have darned?
could you not have darned?
could they not have darned? 	could I not have been darning?
could you not have been darning?
could he not have been darning?
could we not have been darning?
could you not have been darning?
could they not have been darning?