English verb conjugation
CAN CIRCUMSCRIBE

Regular verb: circumscribe - circumscribed - circumscribed

Affirmation

Simple form	V-ing form
I can circumscribe you can circumscribe she can circumscribe we can circumscribe you can circumscribe they can circumscribe	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	V-ing 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	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	V-ing 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	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	V-ing 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	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	V-ing form
can I circumscribe? can you circumscribe? can she circumscribe? can we circumscribe? can you circumscribe? can they circumscribe?	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	V-ing 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?	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	V-ing 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?	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	V-ing 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?	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?