I could circumvent you could circumvent he could circumvent we could circumvent you could circumvent they could circumvent
V-ing form
I could be circumventing you could be circumventing he could be circumventing we could be circumventing you could be circumventing they could be circumventing
Perfect
I could have circumvented you could have circumvented he could have circumvented we could have circumvented you could have circumvented they could have circumvented
V-ing perfect
I could have been circumventing you could have been circumventing he could have been circumventing we could have been circumventing you could have been circumventing they could have been circumventing
Negation
Simple form
I could not circumvent you could not circumvent he could not circumvent we could not circumvent you could not circumvent they could not circumvent
V-ing form
I could not be circumventing you could not be circumventing he could not be circumventing we could not be circumventing you could not be circumventing they could not be circumventing
Perfect
I could not have circumvented you could not have circumvented he could not have circumvented we could not have circumvented you could not have circumvented they could not have circumvented
V-ing perfect
I could not have been circumventing you could not have been circumventing he could not have been circumventing we could not have been circumventing you could not have been circumventing they could not have been circumventing
Interrogative form
Simple form
could I circumvent? could you circumvent? could he circumvent? could we circumvent? could you circumvent? could they circumvent?
V-ing form
could I be circumventing? could you be circumventing? could he be circumventing? could we be circumventing? could you be circumventing? could they be circumventing?
Perfect
could I have circumvented? could you have circumvented? could he have circumvented? could we have circumvented? could you have circumvented? could they have circumvented?
V-ing perfect
could I have been circumventing? could you have been circumventing? could he have been circumventing? could we have been circumventing? could you have been circumventing? could they have been circumventing?
Interro-negative form
Simple form
could I not circumvent? could you not circumvent? could he not circumvent? could we not circumvent? could you not circumvent? could they not circumvent?
V-ing form
could I not be circumventing? could you not be circumventing? could he not be circumventing? could we not be circumventing? could you not be circumventing? could they not be circumventing?
Perfect
could I not have circumvented? could you not have circumvented? could he not have circumvented? could we not have circumvented? could you not have circumvented? could they not have circumvented?
V-ing perfect
could I not have been circumventing? could you not have been circumventing? could he not have been circumventing? could we not have been circumventing? could you not have been circumventing? could they not have been circumventing?