English verb conjugation
COULD CIRCUMVOLVE

Regular verb: circumvolve - circumvolved - circumvolved

Affirmation

Simple form	V-ing form
I could circumvolve you could circumvolve he could circumvolve we could circumvolve you could circumvolve they could circumvolve	I could be circumvolving you could be circumvolving he could be circumvolving we could be circumvolving you could be circumvolving they could be circumvolving
Perfect	V-ing perfect
I could have circumvolved you could have circumvolved he could have circumvolved we could have circumvolved you could have circumvolved they could have circumvolved	I could have been circumvolving you could have been circumvolving he could have been circumvolving we could have been circumvolving you could have been circumvolving they could have been circumvolving

Negation

Simple form	V-ing form
I couldn't circumvolve you couldn't circumvolve he couldn't circumvolve we couldn't circumvolve you couldn't circumvolve they couldn't circumvolve	I couldn't be circumvolving you couldn't be circumvolving he couldn't be circumvolving we couldn't be circumvolving you couldn't be circumvolving they couldn't be circumvolving
Perfect	V-ing perfect
I couldn't have circumvolved you couldn't have circumvolved he couldn't have circumvolved we couldn't have circumvolved you couldn't have circumvolved they couldn't have circumvolved	I couldn't have been circumvolving you couldn't have been circumvolving he couldn't have been circumvolving we couldn't have been circumvolving you couldn't have been circumvolving they couldn't have been circumvolving

Interrogative form

Simple form	V-ing form
could I circumvolve? could you circumvolve? could he circumvolve? could we circumvolve? could you circumvolve? could they circumvolve?	could I be circumvolving? could you be circumvolving? could he be circumvolving? could we be circumvolving? could you be circumvolving? could they be circumvolving?
Perfect	V-ing perfect
could I have circumvolved? could you have circumvolved? could he have circumvolved? could we have circumvolved? could you have circumvolved? could they have circumvolved?	could I have been circumvolving? could you have been circumvolving? could he have been circumvolving? could we have been circumvolving? could you have been circumvolving? could they have been circumvolving?

Interro-negative form

Simple form	V-ing form
couldn't I circumvolve? couldn't you circumvolve? couldn't he circumvolve? couldn't we circumvolve? couldn't you circumvolve? couldn't they circumvolve?	couldn't I be circumvolving? couldn't you be circumvolving? couldn't he be circumvolving? couldn't we be circumvolving? couldn't you be circumvolving? couldn't they be circumvolving?
Perfect	V-ing perfect
couldn't I have circumvolved? couldn't you have circumvolved? couldn't he have circumvolved? couldn't we have circumvolved? couldn't you have circumvolved? couldn't they have circumvolved?	couldn't I have been circumvolving? couldn't you have been circumvolving? couldn't he have been circumvolving? couldn't we have been circumvolving? couldn't you have been circumvolving? couldn't they have been circumvolving?