I can stake you can stake he can stake we can stake you can stake they can stake
V-ing form
I can be staking you can be staking he can be staking we can be staking you can be staking they can be staking
Perfect
I can have staked you can have staked he can have staked we can have staked you can have staked they can have staked
V-ing perfect
I can have been staking you can have been staking he can have been staking we can have been staking you can have been staking they can have been staking
Negation
Simple form
I can't stake you can't stake he can't stake we can't stake you can't stake they can't stake
V-ing form
I can't be staking you can't be staking he can't be staking we can't be staking you can't be staking they can't be staking
Perfect
I can't have staked you can't have staked he can't have staked we can't have staked you can't have staked they can't have staked
V-ing perfect
I can't have been staking you can't have been staking he can't have been staking we can't have been staking you can't have been staking they can't have been staking
Interrogative form
Simple form
can I stake? can you stake? can he stake? can we stake? can you stake? can they stake?
V-ing form
can I be staking? can you be staking? can he be staking? can we be staking? can you be staking? can they be staking?
Perfect
can I have staked? can you have staked? can he have staked? can we have staked? can you have staked? can they have staked?
V-ing perfect
can I have been staking? can you have been staking? can he have been staking? can we have been staking? can you have been staking? can they have been staking?
Interro-negative form
Simple form
can't I stake? can't you stake? can't he stake? can't we stake? can't you stake? can't they stake?
V-ing form
can't I be staking? can't you be staking? can't he be staking? can't we be staking? can't you be staking? can't they be staking?
Perfect
can't I have staked? can't you have staked? can't he have staked? can't we have staked? can't you have staked? can't they have staked?
V-ing perfect
can't I have been staking? can't you have been staking? can't he have been staking? can't we have been staking? can't you have been staking? can't they have been staking?