I can cone you can cone she can cone we can cone you can cone they can cone
V-ing form
I can be coning you can be coning she can be coning we can be coning you can be coning they can be coning
Perfect
I can have coned you can have coned she can have coned we can have coned you can have coned they can have coned
V-ing perfect
I can have been coning you can have been coning she can have been coning we can have been coning you can have been coning they can have been coning
Negation
Simple form
I can't cone you can't cone she can't cone we can't cone you can't cone they can't cone
V-ing form
I can't be coning you can't be coning she can't be coning we can't be coning you can't be coning they can't be coning
Perfect
I can't have coned you can't have coned she can't have coned we can't have coned you can't have coned they can't have coned
V-ing perfect
I can't have been coning you can't have been coning she can't have been coning we can't have been coning you can't have been coning they can't have been coning
Interrogative form
Simple form
can I cone? can you cone? can she cone? can we cone? can you cone? can they cone?
V-ing form
can I be coning? can you be coning? can she be coning? can we be coning? can you be coning? can they be coning?
Perfect
can I have coned? can you have coned? can she have coned? can we have coned? can you have coned? can they have coned?
V-ing perfect
can I have been coning? can you have been coning? can she have been coning? can we have been coning? can you have been coning? can they have been coning?
Interro-negative form
Simple form
can't I cone? can't you cone? can't she cone? can't we cone? can't you cone? can't they cone?
V-ing form
can't I be coning? can't you be coning? can't she be coning? can't we be coning? can't you be coning? can't they be coning?
Perfect
can't I have coned? can't you have coned? can't she have coned? can't we have coned? can't you have coned? can't they have coned?
V-ing perfect
can't I have been coning? can't you have been coning? can't she have been coning? can't we have been coning? can't you have been coning? can't they have been coning?