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