could stake
Verbo regular: stake - staked- staked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could stake
you could stake
she could stake
we could stake
you could stake
they could stake 	I could be staking
you could be staking
she could be staking
we could be staking
you could be staking
they could be staking	I could have staked
you could have staked
she could have staked
we could have staked
you could have staked
they could have staked	I could have been staking
you could have been staking
she could have been staking
we could have been staking
you could have been staking
they could have been staking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not stake
you could not stake
she could not stake
we could not stake
you could not stake
they could not stake 	I could not be staking
you could not be staking
she could not be staking
we could not be staking
you could not be staking
they could not be staking	I could not have staked
you could not have staked
she could not have staked
we could not have staked
you could not have staked
they could not have staked	I could not have been staking
you could not have been staking
she could not have been staking
we could not have been staking
you could not have been staking
they could not have been staking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I stake?
could you stake?
could she stake?
could we stake?
could you stake?
could they stake? 	could I be staking?
could you be staking?
could she be staking?
could we be staking?
could you be staking?
could they be staking? 	could I have staked?
could you have staked?
could she have staked?
could we have staked?
could you have staked?
could they have staked? 	could I have been staking?
could you have been staking?
could she have been staking?
could we have been staking?
could you have been staking?
could they have been staking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not stake?
could you not stake?
could she not stake?
could we not stake?
could you not stake?
could they not stake? 	could I not be staking?
could you not be staking?
could she not be staking?
could we not be staking?
could you not be staking?
could they not be staking? 	could I not have staked?
could you not have staked?
could she not have staked?
could we not have staked?
could you not have staked?
could they not have staked? 	could I not have been staking?
could you not have been staking?
could she not have been staking?
could we not have been staking?
could you not have been staking?
could they not have been staking?