English verb conjugation
COULD KNOT

Regular verb: knot - knotted - knotted

Affirmation

Simple form	V-ing form
I could knot you could knot she could knot we could knot you could knot they could knot	I could be knotting you could be knotting she could be knotting we could be knotting you could be knotting they could be knotting
Perfect	V-ing perfect
I could have knotted you could have knotted she could have knotted we could have knotted you could have knotted they could have knotted	I could have been knotting you could have been knotting she could have been knotting we could have been knotting you could have been knotting they could have been knotting

Negation

Simple form	V-ing form
I could not knot you could not knot she could not knot we could not knot you could not knot they could not knot	I could not be knotting you could not be knotting she could not be knotting we could not be knotting you could not be knotting they could not be knotting
Perfect	V-ing perfect
I could not have knotted you could not have knotted she could not have knotted we could not have knotted you could not have knotted they could not have knotted	I could not have been knotting you could not have been knotting she could not have been knotting we could not have been knotting you could not have been knotting they could not have been knotting

Interrogative form

Simple form	V-ing form
could I knot? could you knot? could she knot? could we knot? could you knot? could they knot?	could I be knotting? could you be knotting? could she be knotting? could we be knotting? could you be knotting? could they be knotting?
Perfect	V-ing perfect
could I have knotted? could you have knotted? could she have knotted? could we have knotted? could you have knotted? could they have knotted?	could I have been knotting? could you have been knotting? could she have been knotting? could we have been knotting? could you have been knotting? could they have been knotting?

Interro-negative form

Simple form	V-ing form
could I not knot? could you not knot? could she not knot? could we not knot? could you not knot? could they not knot?	could I not be knotting? could you not be knotting? could she not be knotting? could we not be knotting? could you not be knotting? could they not be knotting?
Perfect	V-ing perfect
could I not have knotted? could you not have knotted? could she not have knotted? could we not have knotted? could you not have knotted? could they not have knotted?	could I not have been knotting? could you not have been knotting? could she not have been knotting? could we not have been knotting? could you not have been knotting? could they not have been knotting?