English verb conjugation
COULD UNCOIL

Regular verb: uncoil - uncoiled - uncoiled

Affirmation

Simple form	V-ing form
I could uncoil you could uncoil he could uncoil we could uncoil you could uncoil they could uncoil	I could be uncoiling you could be uncoiling he could be uncoiling we could be uncoiling you could be uncoiling they could be uncoiling
Perfect	V-ing perfect
I could have uncoiled you could have uncoiled he could have uncoiled we could have uncoiled you could have uncoiled they could have uncoiled	I could have been uncoiling you could have been uncoiling he could have been uncoiling we could have been uncoiling you could have been uncoiling they could have been uncoiling

Negation

Simple form	V-ing form
I could not uncoil you could not uncoil he could not uncoil we could not uncoil you could not uncoil they could not uncoil	I could not be uncoiling you could not be uncoiling he could not be uncoiling we could not be uncoiling you could not be uncoiling they could not be uncoiling
Perfect	V-ing perfect
I could not have uncoiled you could not have uncoiled he could not have uncoiled we could not have uncoiled you could not have uncoiled they could not have uncoiled	I could not have been uncoiling you could not have been uncoiling he could not have been uncoiling we could not have been uncoiling you could not have been uncoiling they could not have been uncoiling

Interrogative form

Simple form	V-ing form
could I uncoil? could you uncoil? could he uncoil? could we uncoil? could you uncoil? could they uncoil?	could I be uncoiling? could you be uncoiling? could he be uncoiling? could we be uncoiling? could you be uncoiling? could they be uncoiling?
Perfect	V-ing perfect
could I have uncoiled? could you have uncoiled? could he have uncoiled? could we have uncoiled? could you have uncoiled? could they have uncoiled?	could I have been uncoiling? could you have been uncoiling? could he have been uncoiling? could we have been uncoiling? could you have been uncoiling? could they have been uncoiling?

Interro-negative form

Simple form	V-ing form
could I not uncoil? could you not uncoil? could he not uncoil? could we not uncoil? could you not uncoil? could they not uncoil?	could I not be uncoiling? could you not be uncoiling? could he not be uncoiling? could we not be uncoiling? could you not be uncoiling? could they not be uncoiling?
Perfect	V-ing perfect
could I not have uncoiled? could you not have uncoiled? could he not have uncoiled? could we not have uncoiled? could you not have uncoiled? could they not have uncoiled?	could I not have been uncoiling? could you not have been uncoiling? could he not have been uncoiling? could we not have been uncoiling? could you not have been uncoiling? could they not have been uncoiling?