English verb conjugation
COULD COPY

Regular verb: copy - copied - copied

Affirmation

Simple form	V-ing form
I could copy you could copy he could copy we could copy you could copy they could copy	I could be copying you could be copying he could be copying we could be copying you could be copying they could be copying
Perfect	V-ing perfect
I could have copied you could have copied he could have copied we could have copied you could have copied they could have copied	I could have been copying you could have been copying he could have been copying we could have been copying you could have been copying they could have been copying

Negation

Simple form	V-ing form
I could not copy you could not copy he could not copy we could not copy you could not copy they could not copy	I could not be copying you could not be copying he could not be copying we could not be copying you could not be copying they could not be copying
Perfect	V-ing perfect
I could not have copied you could not have copied he could not have copied we could not have copied you could not have copied they could not have copied	I could not have been copying you could not have been copying he could not have been copying we could not have been copying you could not have been copying they could not have been copying

Interrogative form

Simple form	V-ing form
could I copy? could you copy? could he copy? could we copy? could you copy? could they copy?	could I be copying? could you be copying? could he be copying? could we be copying? could you be copying? could they be copying?
Perfect	V-ing perfect
could I have copied? could you have copied? could he have copied? could we have copied? could you have copied? could they have copied?	could I have been copying? could you have been copying? could he have been copying? could we have been copying? could you have been copying? could they have been copying?

Interro-negative form

Simple form	V-ing form
could I not copy? could you not copy? could he not copy? could we not copy? could you not copy? could they not copy?	could I not be copying? could you not be copying? could he not be copying? could we not be copying? could you not be copying? could they not be copying?
Perfect	V-ing perfect
could I not have copied? could you not have copied? could he not have copied? could we not have copied? could you not have copied? could they not have copied?	could I not have been copying? could you not have been copying? could he not have been copying? could we not have been copying? could you not have been copying? could they not have been copying?