English verb conjugation
COULD REFILM

Regular verb: refilm - refilmed - refilmed

Affirmation

Simple form	V-ing form
I could refilm you could refilm he could refilm we could refilm you could refilm they could refilm	I could be refilming you could be refilming he could be refilming we could be refilming you could be refilming they could be refilming
Perfect	V-ing perfect
I could have refilmed you could have refilmed he could have refilmed we could have refilmed you could have refilmed they could have refilmed	I could have been refilming you could have been refilming he could have been refilming we could have been refilming you could have been refilming they could have been refilming

Negation

Simple form	V-ing form
I could not refilm you could not refilm he could not refilm we could not refilm you could not refilm they could not refilm	I could not be refilming you could not be refilming he could not be refilming we could not be refilming you could not be refilming they could not be refilming
Perfect	V-ing perfect
I could not have refilmed you could not have refilmed he could not have refilmed we could not have refilmed you could not have refilmed they could not have refilmed	I could not have been refilming you could not have been refilming he could not have been refilming we could not have been refilming you could not have been refilming they could not have been refilming

Interrogative form

Simple form	V-ing form
could I refilm? could you refilm? could he refilm? could we refilm? could you refilm? could they refilm?	could I be refilming? could you be refilming? could he be refilming? could we be refilming? could you be refilming? could they be refilming?
Perfect	V-ing perfect
could I have refilmed? could you have refilmed? could he have refilmed? could we have refilmed? could you have refilmed? could they have refilmed?	could I have been refilming? could you have been refilming? could he have been refilming? could we have been refilming? could you have been refilming? could they have been refilming?

Interro-negative form

Simple form	V-ing form
could I not refilm? could you not refilm? could he not refilm? could we not refilm? could you not refilm? could they not refilm?	could I not be refilming? could you not be refilming? could he not be refilming? could we not be refilming? could you not be refilming? could they not be refilming?
Perfect	V-ing perfect
could I not have refilmed? could you not have refilmed? could he not have refilmed? could we not have refilmed? could you not have refilmed? could they not have refilmed?	could I not have been refilming? could you not have been refilming? could he not have been refilming? could we not have been refilming? could you not have been refilming? could they not have been refilming?