could dig
Verbo irregular: dig - dug- dug

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could dig
you could dig
she could dig
we could dig
you could dig
they could dig 	I could be digging
you could be digging
she could be digging
we could be digging
you could be digging
they could be digging	I could have dug
you could have dug
she could have dug
we could have dug
you could have dug
they could have dug	I could have been digging
you could have been digging
she could have been digging
we could have been digging
you could have been digging
they could have been digging	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not dig
you could not dig
she could not dig
we could not dig
you could not dig
they could not dig 	I could not be digging
you could not be digging
she could not be digging
we could not be digging
you could not be digging
they could not be digging	I could not have dug
you could not have dug
she could not have dug
we could not have dug
you could not have dug
they could not have dug	I could not have been digging
you could not have been digging
she could not have been digging
we could not have been digging
you could not have been digging
they could not have been digging	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I dig?
could you dig?
could she dig?
could we dig?
could you dig?
could they dig? 	could I be digging?
could you be digging?
could she be digging?
could we be digging?
could you be digging?
could they be digging? 	could I have dug?
could you have dug?
could she have dug?
could we have dug?
could you have dug?
could they have dug? 	could I have been digging?
could you have been digging?
could she have been digging?
could we have been digging?
could you have been digging?
could they have been digging? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not dig?
could you not dig?
could she not dig?
could we not dig?
could you not dig?
could they not dig? 	could I not be digging?
could you not be digging?
could she not be digging?
could we not be digging?
could you not be digging?
could they not be digging? 	could I not have dug?
could you not have dug?
could she not have dug?
could we not have dug?
could you not have dug?
could they not have dug? 	could I not have been digging?
could you not have been digging?
could she not have been digging?
could we not have been digging?
could you not have been digging?
could they not have been digging?