English verb conjugation
COULD UPSWEEP

Irregular verb: upsweep - upswept - upswept

Affirmation

Simple form	V-ing form
I could upsweep you could upsweep he could upsweep we could upsweep you could upsweep they could upsweep	I could be upsweeping you could be upsweeping he 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 he 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 he 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 couldn't upsweep you couldn't upsweep he couldn't upsweep we couldn't upsweep you couldn't upsweep they couldn't upsweep	I couldn't be upsweeping you couldn't be upsweeping he couldn't be upsweeping we couldn't be upsweeping you couldn't be upsweeping they couldn't be upsweeping
Perfect	V-ing perfect
I couldn't have upswept you couldn't have upswept he couldn't have upswept we couldn't have upswept you couldn't have upswept they couldn't have upswept	I couldn't have been upsweeping you couldn't have been upsweeping he couldn't have been upsweeping we couldn't have been upsweeping you couldn't have been upsweeping they couldn't have been upsweeping

Interrogative form

Simple form	V-ing form
could I upsweep? could you upsweep? could he upsweep? could we upsweep? could you upsweep? could they upsweep?	could I be upsweeping? could you be upsweeping? could he 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 he 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 he 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
couldn't I upsweep? couldn't you upsweep? couldn't he upsweep? couldn't we upsweep? couldn't you upsweep? couldn't they upsweep?	couldn't I be upsweeping? couldn't you be upsweeping? couldn't he be upsweeping? couldn't we be upsweeping? couldn't you be upsweeping? couldn't they be upsweeping?
Perfect	V-ing perfect
couldn't I have upswept? couldn't you have upswept? couldn't he have upswept? couldn't we have upswept? couldn't you have upswept? couldn't they have upswept?	couldn't I have been upsweeping? couldn't you have been upsweeping? couldn't he have been upsweeping? couldn't we have been upsweeping? couldn't you have been upsweeping? couldn't they have been upsweeping?