English verb conjugation
COULD ILLUME

Regular verb: illume - illumed - illumed

Affirmation

Simple form	V-ing form
I could illume you could illume he could illume we could illume you could illume they could illume	I could be illuming you could be illuming he could be illuming we could be illuming you could be illuming they could be illuming
Perfect	V-ing perfect
I could have illumed you could have illumed he could have illumed we could have illumed you could have illumed they could have illumed	I could have been illuming you could have been illuming he could have been illuming we could have been illuming you could have been illuming they could have been illuming

Negation

Simple form	V-ing form
I could not illume you could not illume he could not illume we could not illume you could not illume they could not illume	I could not be illuming you could not be illuming he could not be illuming we could not be illuming you could not be illuming they could not be illuming
Perfect	V-ing perfect
I could not have illumed you could not have illumed he could not have illumed we could not have illumed you could not have illumed they could not have illumed	I could not have been illuming you could not have been illuming he could not have been illuming we could not have been illuming you could not have been illuming they could not have been illuming

Interrogative form

Simple form	V-ing form
could I illume? could you illume? could he illume? could we illume? could you illume? could they illume?	could I be illuming? could you be illuming? could he be illuming? could we be illuming? could you be illuming? could they be illuming?
Perfect	V-ing perfect
could I have illumed? could you have illumed? could he have illumed? could we have illumed? could you have illumed? could they have illumed?	could I have been illuming? could you have been illuming? could he have been illuming? could we have been illuming? could you have been illuming? could they have been illuming?

Interro-negative form

Simple form	V-ing form
could I not illume? could you not illume? could he not illume? could we not illume? could you not illume? could they not illume?	could I not be illuming? could you not be illuming? could he not be illuming? could we not be illuming? could you not be illuming? could they not be illuming?
Perfect	V-ing perfect
could I not have illumed? could you not have illumed? could he not have illumed? could we not have illumed? could you not have illumed? could they not have illumed?	could I not have been illuming? could you not have been illuming? could he not have been illuming? could we not have been illuming? could you not have been illuming? could they not have been illuming?