English verb conjugation
COULD CONVOLVE

Regular verb: convolve - convolved - convolved

Affirmation

Simple form	V-ing form
I could convolve you could convolve he could convolve we could convolve you could convolve they could convolve	I could be convolving you could be convolving he could be convolving we could be convolving you could be convolving they could be convolving
Perfect	V-ing perfect
I could have convolved you could have convolved he could have convolved we could have convolved you could have convolved they could have convolved	I could have been convolving you could have been convolving he could have been convolving we could have been convolving you could have been convolving they could have been convolving

Negation

Simple form	V-ing form
I could not convolve you could not convolve he could not convolve we could not convolve you could not convolve they could not convolve	I could not be convolving you could not be convolving he could not be convolving we could not be convolving you could not be convolving they could not be convolving
Perfect	V-ing perfect
I could not have convolved you could not have convolved he could not have convolved we could not have convolved you could not have convolved they could not have convolved	I could not have been convolving you could not have been convolving he could not have been convolving we could not have been convolving you could not have been convolving they could not have been convolving

Interrogative form

Simple form	V-ing form
could I convolve? could you convolve? could he convolve? could we convolve? could you convolve? could they convolve?	could I be convolving? could you be convolving? could he be convolving? could we be convolving? could you be convolving? could they be convolving?
Perfect	V-ing perfect
could I have convolved? could you have convolved? could he have convolved? could we have convolved? could you have convolved? could they have convolved?	could I have been convolving? could you have been convolving? could he have been convolving? could we have been convolving? could you have been convolving? could they have been convolving?

Interro-negative form

Simple form	V-ing form
could I not convolve? could you not convolve? could he not convolve? could we not convolve? could you not convolve? could they not convolve?	could I not be convolving? could you not be convolving? could he not be convolving? could we not be convolving? could you not be convolving? could they not be convolving?
Perfect	V-ing perfect
could I not have convolved? could you not have convolved? could he not have convolved? could we not have convolved? could you not have convolved? could they not have convolved?	could I not have been convolving? could you not have been convolving? could he not have been convolving? could we not have been convolving? could you not have been convolving? could they not have been convolving?