could unearth
Verbo regular: unearth - unearthed- unearthed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could unearth
you could unearth
he could unearth
we could unearth
you could unearth
they could unearth 	I could be unearthing
you could be unearthing
he could be unearthing
we could be unearthing
you could be unearthing
they could be unearthing	I could have unearthed
you could have unearthed
he could have unearthed
we could have unearthed
you could have unearthed
they could have unearthed	I could have been unearthing
you could have been unearthing
he could have been unearthing
we could have been unearthing
you could have been unearthing
they could have been unearthing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not unearth
you could not unearth
he could not unearth
we could not unearth
you could not unearth
they could not unearth 	I could not be unearthing
you could not be unearthing
he could not be unearthing
we could not be unearthing
you could not be unearthing
they could not be unearthing	I could not have unearthed
you could not have unearthed
he could not have unearthed
we could not have unearthed
you could not have unearthed
they could not have unearthed	I could not have been unearthing
you could not have been unearthing
he could not have been unearthing
we could not have been unearthing
you could not have been unearthing
they could not have been unearthing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I unearth?
could you unearth?
could he unearth?
could we unearth?
could you unearth?
could they unearth? 	could I be unearthing?
could you be unearthing?
could he be unearthing?
could we be unearthing?
could you be unearthing?
could they be unearthing? 	could I have unearthed?
could you have unearthed?
could he have unearthed?
could we have unearthed?
could you have unearthed?
could they have unearthed? 	could I have been unearthing?
could you have been unearthing?
could he have been unearthing?
could we have been unearthing?
could you have been unearthing?
could they have been unearthing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not unearth?
could you not unearth?
could he not unearth?
could we not unearth?
could you not unearth?
could they not unearth? 	could I not be unearthing?
could you not be unearthing?
could he not be unearthing?
could we not be unearthing?
could you not be unearthing?
could they not be unearthing? 	could I not have unearthed?
could you not have unearthed?
could he not have unearthed?
could we not have unearthed?
could you not have unearthed?
could they not have unearthed? 	could I not have been unearthing?
could you not have been unearthing?
could he not have been unearthing?
could we not have been unearthing?
could you not have been unearthing?
could they not have been unearthing?