I can circumscribe you can circumscribe she can circumscribe we can circumscribe you can circumscribe they can circumscribe
V-ing form
I can be circumscribing you can be circumscribing she can be circumscribing we can be circumscribing you can be circumscribing they can be circumscribing
Perfect
I can have circumscribed you can have circumscribed she can have circumscribed we can have circumscribed you can have circumscribed they can have circumscribed
V-ing perfect
I can have been circumscribing you can have been circumscribing she can have been circumscribing we can have been circumscribing you can have been circumscribing they can have been circumscribing
Negation
Simple form
I can't circumscribe you can't circumscribe she can't circumscribe we can't circumscribe you can't circumscribe they can't circumscribe
V-ing form
I can't be circumscribing you can't be circumscribing she can't be circumscribing we can't be circumscribing you can't be circumscribing they can't be circumscribing
Perfect
I can't have circumscribed you can't have circumscribed she can't have circumscribed we can't have circumscribed you can't have circumscribed they can't have circumscribed
V-ing perfect
I can't have been circumscribing you can't have been circumscribing she can't have been circumscribing we can't have been circumscribing you can't have been circumscribing they can't have been circumscribing
Interrogative form
Simple form
can I circumscribe? can you circumscribe? can she circumscribe? can we circumscribe? can you circumscribe? can they circumscribe?
V-ing form
can I be circumscribing? can you be circumscribing? can she be circumscribing? can we be circumscribing? can you be circumscribing? can they be circumscribing?
Perfect
can I have circumscribed? can you have circumscribed? can she have circumscribed? can we have circumscribed? can you have circumscribed? can they have circumscribed?
V-ing perfect
can I have been circumscribing? can you have been circumscribing? can she have been circumscribing? can we have been circumscribing? can you have been circumscribing? can they have been circumscribing?
Interro-negative form
Simple form
can't I circumscribe? can't you circumscribe? can't she circumscribe? can't we circumscribe? can't you circumscribe? can't they circumscribe?
V-ing form
can't I be circumscribing? can't you be circumscribing? can't she be circumscribing? can't we be circumscribing? can't you be circumscribing? can't they be circumscribing?
Perfect
can't I have circumscribed? can't you have circumscribed? can't she have circumscribed? can't we have circumscribed? can't you have circumscribed? can't they have circumscribed?
V-ing perfect
can't I have been circumscribing? can't you have been circumscribing? can't she have been circumscribing? can't we have been circumscribing? can't you have been circumscribing? can't they have been circumscribing?