English verb conjugation
COULD ROVC

Regular verb: rovc - rovced - rovced

Affirmation

Simple form	V-ing form
I could rovc you could rovc he could rovc we could rovc you could rovc they could rovc	I could be rovcing you could be rovcing he could be rovcing we could be rovcing you could be rovcing they could be rovcing
Perfect	V-ing perfect
I could have rovced you could have rovced he could have rovced we could have rovced you could have rovced they could have rovced	I could have been rovcing you could have been rovcing he could have been rovcing we could have been rovcing you could have been rovcing they could have been rovcing

Negation

Simple form	V-ing form
I could not rovc you could not rovc he could not rovc we could not rovc you could not rovc they could not rovc	I could not be rovcing you could not be rovcing he could not be rovcing we could not be rovcing you could not be rovcing they could not be rovcing
Perfect	V-ing perfect
I could not have rovced you could not have rovced he could not have rovced we could not have rovced you could not have rovced they could not have rovced	I could not have been rovcing you could not have been rovcing he could not have been rovcing we could not have been rovcing you could not have been rovcing they could not have been rovcing

Interrogative form

Simple form	V-ing form
could I rovc? could you rovc? could he rovc? could we rovc? could you rovc? could they rovc?	could I be rovcing? could you be rovcing? could he be rovcing? could we be rovcing? could you be rovcing? could they be rovcing?
Perfect	V-ing perfect
could I have rovced? could you have rovced? could he have rovced? could we have rovced? could you have rovced? could they have rovced?	could I have been rovcing? could you have been rovcing? could he have been rovcing? could we have been rovcing? could you have been rovcing? could they have been rovcing?

Interro-negative form

Simple form	V-ing form
could I not rovc? could you not rovc? could he not rovc? could we not rovc? could you not rovc? could they not rovc?	could I not be rovcing? could you not be rovcing? could he not be rovcing? could we not be rovcing? could you not be rovcing? could they not be rovcing?
Perfect	V-ing perfect
could I not have rovced? could you not have rovced? could he not have rovced? could we not have rovced? could you not have rovced? could they not have rovced?	could I not have been rovcing? could you not have been rovcing? could he not have been rovcing? could we not have been rovcing? could you not have been rovcing? could they not have been rovcing?