English verb conjugation
COULD EMPOISON

Regular verb: empoison - empoisoned - empoisoned

Affirmation

Simple form	V-ing form
I could empoison you could empoison he could empoison we could empoison you could empoison they could empoison	I could be empoisoning you could be empoisoning he could be empoisoning we could be empoisoning you could be empoisoning they could be empoisoning
Perfect	V-ing perfect
I could have empoisoned you could have empoisoned he could have empoisoned we could have empoisoned you could have empoisoned they could have empoisoned	I could have been empoisoning you could have been empoisoning he could have been empoisoning we could have been empoisoning you could have been empoisoning they could have been empoisoning

Negation

Simple form	V-ing form
I could not empoison you could not empoison he could not empoison we could not empoison you could not empoison they could not empoison	I could not be empoisoning you could not be empoisoning he could not be empoisoning we could not be empoisoning you could not be empoisoning they could not be empoisoning
Perfect	V-ing perfect
I could not have empoisoned you could not have empoisoned he could not have empoisoned we could not have empoisoned you could not have empoisoned they could not have empoisoned	I could not have been empoisoning you could not have been empoisoning he could not have been empoisoning we could not have been empoisoning you could not have been empoisoning they could not have been empoisoning

Interrogative form

Simple form	V-ing form
could I empoison? could you empoison? could he empoison? could we empoison? could you empoison? could they empoison?	could I be empoisoning? could you be empoisoning? could he be empoisoning? could we be empoisoning? could you be empoisoning? could they be empoisoning?
Perfect	V-ing perfect
could I have empoisoned? could you have empoisoned? could he have empoisoned? could we have empoisoned? could you have empoisoned? could they have empoisoned?	could I have been empoisoning? could you have been empoisoning? could he have been empoisoning? could we have been empoisoning? could you have been empoisoning? could they have been empoisoning?

Interro-negative form

Simple form	V-ing form
could I not empoison? could you not empoison? could he not empoison? could we not empoison? could you not empoison? could they not empoison?	could I not be empoisoning? could you not be empoisoning? could he not be empoisoning? could we not be empoisoning? could you not be empoisoning? could they not be empoisoning?
Perfect	V-ing perfect
could I not have empoisoned? could you not have empoisoned? could he not have empoisoned? could we not have empoisoned? could you not have empoisoned? could they not have empoisoned?	could I not have been empoisoning? could you not have been empoisoning? could he not have been empoisoning? could we not have been empoisoning? could you not have been empoisoning? could they not have been empoisoning?