I can state you can state he can state we can state you can state they can state
V-ing form
I can be stating you can be stating he can be stating we can be stating you can be stating they can be stating
Perfect
I can have stated you can have stated he can have stated we can have stated you can have stated they can have stated
V-ing perfect
I can have been stating you can have been stating he can have been stating we can have been stating you can have been stating they can have been stating
Negation
Simple form
I can't state you can't state he can't state we can't state you can't state they can't state
V-ing form
I can't be stating you can't be stating he can't be stating we can't be stating you can't be stating they can't be stating
Perfect
I can't have stated you can't have stated he can't have stated we can't have stated you can't have stated they can't have stated
V-ing perfect
I can't have been stating you can't have been stating he can't have been stating we can't have been stating you can't have been stating they can't have been stating
Interrogative form
Simple form
can I state? can you state? can he state? can we state? can you state? can they state?
V-ing form
can I be stating? can you be stating? can he be stating? can we be stating? can you be stating? can they be stating?
Perfect
can I have stated? can you have stated? can he have stated? can we have stated? can you have stated? can they have stated?
V-ing perfect
can I have been stating? can you have been stating? can he have been stating? can we have been stating? can you have been stating? can they have been stating?
Interro-negative form
Simple form
can't I state? can't you state? can't he state? can't we state? can't you state? can't they state?
V-ing form
can't I be stating? can't you be stating? can't he be stating? can't we be stating? can't you be stating? can't they be stating?
Perfect
can't I have stated? can't you have stated? can't he have stated? can't we have stated? can't you have stated? can't they have stated?
V-ing perfect
can't I have been stating? can't you have been stating? can't he have been stating? can't we have been stating? can't you have been stating? can't they have been stating?