English verb conjugation
COULD OVERSTOCK

Regular verb: overstock - overstocked - overstocked

Affirmation

Simple form	V-ing form
I could overstock you could overstock he could overstock we could overstock you could overstock they could overstock	I could be overstocking you could be overstocking he could be overstocking we could be overstocking you could be overstocking they could be overstocking
Perfect	V-ing perfect
I could have overstocked you could have overstocked he could have overstocked we could have overstocked you could have overstocked they could have overstocked	I could have been overstocking you could have been overstocking he could have been overstocking we could have been overstocking you could have been overstocking they could have been overstocking

Negation

Simple form	V-ing form
I couldn't overstock you couldn't overstock he couldn't overstock we couldn't overstock you couldn't overstock they couldn't overstock	I couldn't be overstocking you couldn't be overstocking he couldn't be overstocking we couldn't be overstocking you couldn't be overstocking they couldn't be overstocking
Perfect	V-ing perfect
I couldn't have overstocked you couldn't have overstocked he couldn't have overstocked we couldn't have overstocked you couldn't have overstocked they couldn't have overstocked	I couldn't have been overstocking you couldn't have been overstocking he couldn't have been overstocking we couldn't have been overstocking you couldn't have been overstocking they couldn't have been overstocking

Interrogative form

Simple form	V-ing form
could I overstock? could you overstock? could he overstock? could we overstock? could you overstock? could they overstock?	could I be overstocking? could you be overstocking? could he be overstocking? could we be overstocking? could you be overstocking? could they be overstocking?
Perfect	V-ing perfect
could I have overstocked? could you have overstocked? could he have overstocked? could we have overstocked? could you have overstocked? could they have overstocked?	could I have been overstocking? could you have been overstocking? could he have been overstocking? could we have been overstocking? could you have been overstocking? could they have been overstocking?

Interro-negative form

Simple form	V-ing form
couldn't I overstock? couldn't you overstock? couldn't he overstock? couldn't we overstock? couldn't you overstock? couldn't they overstock?	couldn't I be overstocking? couldn't you be overstocking? couldn't he be overstocking? couldn't we be overstocking? couldn't you be overstocking? couldn't they be overstocking?
Perfect	V-ing perfect
couldn't I have overstocked? couldn't you have overstocked? couldn't he have overstocked? couldn't we have overstocked? couldn't you have overstocked? couldn't they have overstocked?	couldn't I have been overstocking? couldn't you have been overstocking? couldn't he have been overstocking? couldn't we have been overstocking? couldn't you have been overstocking? couldn't they have been overstocking?