I can pocket you can pocket he can pocket we can pocket you can pocket they can pocket
V-ing form
I can be pocketing you can be pocketing he can be pocketing we can be pocketing you can be pocketing they can be pocketing
Perfect
I can have pocketed you can have pocketed he can have pocketed we can have pocketed you can have pocketed they can have pocketed
V-ing perfect
I can have been pocketing you can have been pocketing he can have been pocketing we can have been pocketing you can have been pocketing they can have been pocketing
Negation
Simple form
I can't pocket you can't pocket he can't pocket we can't pocket you can't pocket they can't pocket
V-ing form
I can't be pocketing you can't be pocketing he can't be pocketing we can't be pocketing you can't be pocketing they can't be pocketing
Perfect
I can't have pocketed you can't have pocketed he can't have pocketed we can't have pocketed you can't have pocketed they can't have pocketed
V-ing perfect
I can't have been pocketing you can't have been pocketing he can't have been pocketing we can't have been pocketing you can't have been pocketing they can't have been pocketing
Interrogative form
Simple form
can I pocket? can you pocket? can he pocket? can we pocket? can you pocket? can they pocket?
V-ing form
can I be pocketing? can you be pocketing? can he be pocketing? can we be pocketing? can you be pocketing? can they be pocketing?
Perfect
can I have pocketed? can you have pocketed? can he have pocketed? can we have pocketed? can you have pocketed? can they have pocketed?
V-ing perfect
can I have been pocketing? can you have been pocketing? can he have been pocketing? can we have been pocketing? can you have been pocketing? can they have been pocketing?
Interro-negative form
Simple form
can't I pocket? can't you pocket? can't he pocket? can't we pocket? can't you pocket? can't they pocket?
V-ing form
can't I be pocketing? can't you be pocketing? can't he be pocketing? can't we be pocketing? can't you be pocketing? can't they be pocketing?
Perfect
can't I have pocketed? can't you have pocketed? can't he have pocketed? can't we have pocketed? can't you have pocketed? can't they have pocketed?
V-ing perfect
can't I have been pocketing? can't you have been pocketing? can't he have been pocketing? can't we have been pocketing? can't you have been pocketing? can't they have been pocketing?