English verb conjugation
COULD CONVERGE

Regular verb: converge - converged - converged

Affirmation

Simple form	V-ing form
I could converge you could converge he could converge we could converge you could converge they could converge	I could be converging you could be converging he could be converging we could be converging you could be converging they could be converging
Perfect	V-ing perfect
I could have converged you could have converged he could have converged we could have converged you could have converged they could have converged	I could have been converging you could have been converging he could have been converging we could have been converging you could have been converging they could have been converging

Negation

Simple form	V-ing form
I could not converge you could not converge he could not converge we could not converge you could not converge they could not converge	I could not be converging you could not be converging he could not be converging we could not be converging you could not be converging they could not be converging
Perfect	V-ing perfect
I could not have converged you could not have converged he could not have converged we could not have converged you could not have converged they could not have converged	I could not have been converging you could not have been converging he could not have been converging we could not have been converging you could not have been converging they could not have been converging

Interrogative form

Simple form	V-ing form
could I converge? could you converge? could he converge? could we converge? could you converge? could they converge?	could I be converging? could you be converging? could he be converging? could we be converging? could you be converging? could they be converging?
Perfect	V-ing perfect
could I have converged? could you have converged? could he have converged? could we have converged? could you have converged? could they have converged?	could I have been converging? could you have been converging? could he have been converging? could we have been converging? could you have been converging? could they have been converging?

Interro-negative form

Simple form	V-ing form
could I not converge? could you not converge? could he not converge? could we not converge? could you not converge? could they not converge?	could I not be converging? could you not be converging? could he not be converging? could we not be converging? could you not be converging? could they not be converging?
Perfect	V-ing perfect
could I not have converged? could you not have converged? could he not have converged? could we not have converged? could you not have converged? could they not have converged?	could I not have been converging? could you not have been converging? could he not have been converging? could we not have been converging? could you not have been converging? could they not have been converging?