English verb conjugation
COULD COIL

Regular verb: coil - coiled - coiled

Affirmation

Simple form	V-ing form
I could coil you could coil he could coil we could coil you could coil they could coil	I could be coiling you could be coiling he could be coiling we could be coiling you could be coiling they could be coiling
Perfect	V-ing perfect
I could have coiled you could have coiled he could have coiled we could have coiled you could have coiled they could have coiled	I could have been coiling you could have been coiling he could have been coiling we could have been coiling you could have been coiling they could have been coiling

Negation

Simple form	V-ing form
I could not coil you could not coil he could not coil we could not coil you could not coil they could not coil	I could not be coiling you could not be coiling he could not be coiling we could not be coiling you could not be coiling they could not be coiling
Perfect	V-ing perfect
I could not have coiled you could not have coiled he could not have coiled we could not have coiled you could not have coiled they could not have coiled	I could not have been coiling you could not have been coiling he could not have been coiling we could not have been coiling you could not have been coiling they could not have been coiling

Interrogative form

Simple form	V-ing form
could I coil? could you coil? could he coil? could we coil? could you coil? could they coil?	could I be coiling? could you be coiling? could he be coiling? could we be coiling? could you be coiling? could they be coiling?
Perfect	V-ing perfect
could I have coiled? could you have coiled? could he have coiled? could we have coiled? could you have coiled? could they have coiled?	could I have been coiling? could you have been coiling? could he have been coiling? could we have been coiling? could you have been coiling? could they have been coiling?

Interro-negative form

Simple form	V-ing form
could I not coil? could you not coil? could he not coil? could we not coil? could you not coil? could they not coil?	could I not be coiling? could you not be coiling? could he not be coiling? could we not be coiling? could you not be coiling? could they not be coiling?
Perfect	V-ing perfect
could I not have coiled? could you not have coiled? could he not have coiled? could we not have coiled? could you not have coiled? could they not have coiled?	could I not have been coiling? could you not have been coiling? could he not have been coiling? could we not have been coiling? could you not have been coiling? could they not have been coiling?