English verb conjugation
COULD POIL

Regular verb: poil - poiled - poiled

Affirmation

Simple form	V-ing form
I could poil you could poil he could poil we could poil you could poil they could poil	I could be poiling you could be poiling he could be poiling we could be poiling you could be poiling they could be poiling
Perfect	V-ing perfect
I could have poiled you could have poiled he could have poiled we could have poiled you could have poiled they could have poiled	I could have been poiling you could have been poiling he could have been poiling we could have been poiling you could have been poiling they could have been poiling

Negation

Simple form	V-ing form
I couldn't poil you couldn't poil he couldn't poil we couldn't poil you couldn't poil they couldn't poil	I couldn't be poiling you couldn't be poiling he couldn't be poiling we couldn't be poiling you couldn't be poiling they couldn't be poiling
Perfect	V-ing perfect
I couldn't have poiled you couldn't have poiled he couldn't have poiled we couldn't have poiled you couldn't have poiled they couldn't have poiled	I couldn't have been poiling you couldn't have been poiling he couldn't have been poiling we couldn't have been poiling you couldn't have been poiling they couldn't have been poiling

Interrogative form

Simple form	V-ing form
could I poil? could you poil? could he poil? could we poil? could you poil? could they poil?	could I be poiling? could you be poiling? could he be poiling? could we be poiling? could you be poiling? could they be poiling?
Perfect	V-ing perfect
could I have poiled? could you have poiled? could he have poiled? could we have poiled? could you have poiled? could they have poiled?	could I have been poiling? could you have been poiling? could he have been poiling? could we have been poiling? could you have been poiling? could they have been poiling?

Interro-negative form

Simple form	V-ing form
couldn't I poil? couldn't you poil? couldn't he poil? couldn't we poil? couldn't you poil? couldn't they poil?	couldn't I be poiling? couldn't you be poiling? couldn't he be poiling? couldn't we be poiling? couldn't you be poiling? couldn't they be poiling?
Perfect	V-ing perfect
couldn't I have poiled? couldn't you have poiled? couldn't he have poiled? couldn't we have poiled? couldn't you have poiled? couldn't they have poiled?	couldn't I have been poiling? couldn't you have been poiling? couldn't he have been poiling? couldn't we have been poiling? couldn't you have been poiling? couldn't they have been poiling?