English verb conjugation
COULD AFFIRM

Regular verb: affirm - affirmed - affirmed

Affirmation

Simple form	V-ing form
I could affirm you could affirm he could affirm we could affirm you could affirm they could affirm	I could be affirming you could be affirming he could be affirming we could be affirming you could be affirming they could be affirming
Perfect	V-ing perfect
I could have affirmed you could have affirmed he could have affirmed we could have affirmed you could have affirmed they could have affirmed	I could have been affirming you could have been affirming he could have been affirming we could have been affirming you could have been affirming they could have been affirming

Negation

Simple form	V-ing form
I could not affirm you could not affirm he could not affirm we could not affirm you could not affirm they could not affirm	I could not be affirming you could not be affirming he could not be affirming we could not be affirming you could not be affirming they could not be affirming
Perfect	V-ing perfect
I could not have affirmed you could not have affirmed he could not have affirmed we could not have affirmed you could not have affirmed they could not have affirmed	I could not have been affirming you could not have been affirming he could not have been affirming we could not have been affirming you could not have been affirming they could not have been affirming

Interrogative form

Simple form	V-ing form
could I affirm? could you affirm? could he affirm? could we affirm? could you affirm? could they affirm?	could I be affirming? could you be affirming? could he be affirming? could we be affirming? could you be affirming? could they be affirming?
Perfect	V-ing perfect
could I have affirmed? could you have affirmed? could he have affirmed? could we have affirmed? could you have affirmed? could they have affirmed?	could I have been affirming? could you have been affirming? could he have been affirming? could we have been affirming? could you have been affirming? could they have been affirming?

Interro-negative form

Simple form	V-ing form
could I not affirm? could you not affirm? could he not affirm? could we not affirm? could you not affirm? could they not affirm?	could I not be affirming? could you not be affirming? could he not be affirming? could we not be affirming? could you not be affirming? could they not be affirming?
Perfect	V-ing perfect
could I not have affirmed? could you not have affirmed? could he not have affirmed? could we not have affirmed? could you not have affirmed? could they not have affirmed?	could I not have been affirming? could you not have been affirming? could he not have been affirming? could we not have been affirming? could you not have been affirming? could they not have been affirming?