I could stake you could stake he could stake we could stake you could stake they could stake
Forme en 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
Perfect
I could have staked you could have staked he could have staked we could have staked you could have staked they could have staked
Perfect en 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
Négation
Forme simple
I couldn't stake you couldn't stake he couldn't stake we couldn't stake you couldn't stake they couldn't stake
Forme en V-ing
I couldn't be staking you couldn't be staking he couldn't be staking we couldn't be staking you couldn't be staking they couldn't be staking
Perfect
I couldn't have staked you couldn't have staked he couldn't have staked we couldn't have staked you couldn't have staked they couldn't have staked
Perfect en V-ing
I couldn't have been staking you couldn't have been staking he couldn't have been staking we couldn't have been staking you couldn't have been staking they couldn't have been staking
Forme interrogative
Forme simple
could I stake? could you stake? could he stake? could we stake? could you stake? could they stake?
Forme en 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?
Perfect
could I have staked? could you have staked? could he have staked? could we have staked? could you have staked? could they have staked?
Perfect en 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?
Forme interro-négative
Forme simple
couldn't I stake? couldn't you stake? couldn't he stake? couldn't we stake? couldn't you stake? couldn't they stake?
Forme en V-ing
couldn't I be staking? couldn't you be staking? couldn't he be staking? couldn't we be staking? couldn't you be staking? couldn't they be staking?
Perfect
couldn't I have staked? couldn't you have staked? couldn't he have staked? couldn't we have staked? couldn't you have staked? couldn't they have staked?
Perfect en V-ing
couldn't I have been staking? couldn't you have been staking? couldn't he have been staking? couldn't we have been staking? couldn't you have been staking? couldn't they have been staking?