English verb conjugation
COULD UPSWEEP

Irregular verb: upsweep - upswept - upswept

Affirmation

Simple form	V-ing form
I could upsweep you could upsweep she could upsweep we could upsweep you could upsweep they could upsweep	I could be upsweeping you could be upsweeping she could be upsweeping we could be upsweeping you could be upsweeping they could be upsweeping
Perfect	V-ing perfect
I could have upswept you could have upswept she could have upswept we could have upswept you could have upswept they could have upswept	I could have been upsweeping you could have been upsweeping she could have been upsweeping we could have been upsweeping you could have been upsweeping they could have been upsweeping

Negation

Simple form	V-ing form
I could not upsweep you could not upsweep she could not upsweep we could not upsweep you could not upsweep they could not upsweep	I could not be upsweeping you could not be upsweeping she could not be upsweeping we could not be upsweeping you could not be upsweeping they could not be upsweeping
Perfect	V-ing perfect
I could not have upswept you could not have upswept she could not have upswept we could not have upswept you could not have upswept they could not have upswept	I could not have been upsweeping you could not have been upsweeping she could not have been upsweeping we could not have been upsweeping you could not have been upsweeping they could not have been upsweeping

Interrogative form

Simple form	V-ing form
could I upsweep? could you upsweep? could she upsweep? could we upsweep? could you upsweep? could they upsweep?	could I be upsweeping? could you be upsweeping? could she be upsweeping? could we be upsweeping? could you be upsweeping? could they be upsweeping?
Perfect	V-ing perfect
could I have upswept? could you have upswept? could she have upswept? could we have upswept? could you have upswept? could they have upswept?	could I have been upsweeping? could you have been upsweeping? could she have been upsweeping? could we have been upsweeping? could you have been upsweeping? could they have been upsweeping?

Interro-negative form

Simple form	V-ing form
could I not upsweep? could you not upsweep? could she not upsweep? could we not upsweep? could you not upsweep? could they not upsweep?	could I not be upsweeping? could you not be upsweeping? could she not be upsweeping? could we not be upsweeping? could you not be upsweeping? could they not be upsweeping?
Perfect	V-ing perfect
could I not have upswept? could you not have upswept? could she not have upswept? could we not have upswept? could you not have upswept? could they not have upswept?	could I not have been upsweeping? could you not have been upsweeping? could she not have been upsweeping? could we not have been upsweeping? could you not have been upsweeping? could they not have been upsweeping?