English verb conjugation
COULD UNSTEP

Regular verb: unstep - unsteped - unsteped

Affirmation

Simple form	V-ing form
I could unstep you could unstep he could unstep we could unstep you could unstep they could unstep	I could be unsteping you could be unsteping he could be unsteping we could be unsteping you could be unsteping they could be unsteping
Perfect	V-ing perfect
I could have unsteped you could have unsteped he could have unsteped we could have unsteped you could have unsteped they could have unsteped	I could have been unsteping you could have been unsteping he could have been unsteping we could have been unsteping you could have been unsteping they could have been unsteping

Negation

Simple form	V-ing form
I could not unstep you could not unstep he could not unstep we could not unstep you could not unstep they could not unstep	I could not be unsteping you could not be unsteping he could not be unsteping we could not be unsteping you could not be unsteping they could not be unsteping
Perfect	V-ing perfect
I could not have unsteped you could not have unsteped he could not have unsteped we could not have unsteped you could not have unsteped they could not have unsteped	I could not have been unsteping you could not have been unsteping he could not have been unsteping we could not have been unsteping you could not have been unsteping they could not have been unsteping

Interrogative form

Simple form	V-ing form
could I unstep? could you unstep? could he unstep? could we unstep? could you unstep? could they unstep?	could I be unsteping? could you be unsteping? could he be unsteping? could we be unsteping? could you be unsteping? could they be unsteping?
Perfect	V-ing perfect
could I have unsteped? could you have unsteped? could he have unsteped? could we have unsteped? could you have unsteped? could they have unsteped?	could I have been unsteping? could you have been unsteping? could he have been unsteping? could we have been unsteping? could you have been unsteping? could they have been unsteping?

Interro-negative form

Simple form	V-ing form
could I not unstep? could you not unstep? could he not unstep? could we not unstep? could you not unstep? could they not unstep?	could I not be unsteping? could you not be unsteping? could he not be unsteping? could we not be unsteping? could you not be unsteping? could they not be unsteping?
Perfect	V-ing perfect
could I not have unsteped? could you not have unsteped? could he not have unsteped? could we not have unsteped? could you not have unsteped? could they not have unsteped?	could I not have been unsteping? could you not have been unsteping? could he not have been unsteping? could we not have been unsteping? could you not have been unsteping? could they not have been unsteping?