English verb conjugation
COULD HALLUCINATE

Regular verb: hallucinate - hallucinated - hallucinated

Affirmation

Simple form	V-ing form
I could hallucinate you could hallucinate he could hallucinate we could hallucinate you could hallucinate they could hallucinate	I could be hallucinating you could be hallucinating he could be hallucinating we could be hallucinating you could be hallucinating they could be hallucinating
Perfect	V-ing perfect
I could have hallucinated you could have hallucinated he could have hallucinated we could have hallucinated you could have hallucinated they could have hallucinated	I could have been hallucinating you could have been hallucinating he could have been hallucinating we could have been hallucinating you could have been hallucinating they could have been hallucinating

Negation

Simple form	V-ing form
I could not hallucinate you could not hallucinate he could not hallucinate we could not hallucinate you could not hallucinate they could not hallucinate	I could not be hallucinating you could not be hallucinating he could not be hallucinating we could not be hallucinating you could not be hallucinating they could not be hallucinating
Perfect	V-ing perfect
I could not have hallucinated you could not have hallucinated he could not have hallucinated we could not have hallucinated you could not have hallucinated they could not have hallucinated	I could not have been hallucinating you could not have been hallucinating he could not have been hallucinating we could not have been hallucinating you could not have been hallucinating they could not have been hallucinating

Interrogative form

Simple form	V-ing form
could I hallucinate? could you hallucinate? could he hallucinate? could we hallucinate? could you hallucinate? could they hallucinate?	could I be hallucinating? could you be hallucinating? could he be hallucinating? could we be hallucinating? could you be hallucinating? could they be hallucinating?
Perfect	V-ing perfect
could I have hallucinated? could you have hallucinated? could he have hallucinated? could we have hallucinated? could you have hallucinated? could they have hallucinated?	could I have been hallucinating? could you have been hallucinating? could he have been hallucinating? could we have been hallucinating? could you have been hallucinating? could they have been hallucinating?

Interro-negative form

Simple form	V-ing form
could I not hallucinate? could you not hallucinate? could he not hallucinate? could we not hallucinate? could you not hallucinate? could they not hallucinate?	could I not be hallucinating? could you not be hallucinating? could he not be hallucinating? could we not be hallucinating? could you not be hallucinating? could they not be hallucinating?
Perfect	V-ing perfect
could I not have hallucinated? could you not have hallucinated? could he not have hallucinated? could we not have hallucinated? could you not have hallucinated? could they not have hallucinated?	could I not have been hallucinating? could you not have been hallucinating? could he not have been hallucinating? could we not have been hallucinating? could you not have been hallucinating? could they not have been hallucinating?