English verb conjugation
COULD PERIL

Regular verb: peril - periled - periled

Affirmation

Simple form	V-ing form
I could peril you could peril he could peril we could peril you could peril they could peril	I could be periling you could be periling he could be periling we could be periling you could be periling they could be periling
Perfect	V-ing perfect
I could have periled you could have periled he could have periled we could have periled you could have periled they could have periled	I could have been periling you could have been periling he could have been periling we could have been periling you could have been periling they could have been periling

Negation

Simple form	V-ing form
I could not peril you could not peril he could not peril we could not peril you could not peril they could not peril	I could not be periling you could not be periling he could not be periling we could not be periling you could not be periling they could not be periling
Perfect	V-ing perfect
I could not have periled you could not have periled he could not have periled we could not have periled you could not have periled they could not have periled	I could not have been periling you could not have been periling he could not have been periling we could not have been periling you could not have been periling they could not have been periling

Interrogative form

Simple form	V-ing form
could I peril? could you peril? could he peril? could we peril? could you peril? could they peril?	could I be periling? could you be periling? could he be periling? could we be periling? could you be periling? could they be periling?
Perfect	V-ing perfect
could I have periled? could you have periled? could he have periled? could we have periled? could you have periled? could they have periled?	could I have been periling? could you have been periling? could he have been periling? could we have been periling? could you have been periling? could they have been periling?

Interro-negative form

Simple form	V-ing form
could I not peril? could you not peril? could he not peril? could we not peril? could you not peril? could they not peril?	could I not be periling? could you not be periling? could he not be periling? could we not be periling? could you not be periling? could they not be periling?
Perfect	V-ing perfect
could I not have periled? could you not have periled? could he not have periled? could we not have periled? could you not have periled? could they not have periled?	could I not have been periling? could you not have been periling? could he not have been periling? could we not have been periling? could you not have been periling? could they not have been periling?