English verb conjugation
COULD FISSURE

Regular verb: fissure - fissured - fissured

Affirmation

Simple form	V-ing form
I could fissure you could fissure he could fissure we could fissure you could fissure they could fissure	I could be fissuring you could be fissuring he could be fissuring we could be fissuring you could be fissuring they could be fissuring
Perfect	V-ing perfect
I could have fissured you could have fissured he could have fissured we could have fissured you could have fissured they could have fissured	I could have been fissuring you could have been fissuring he could have been fissuring we could have been fissuring you could have been fissuring they could have been fissuring

Negation

Simple form	V-ing form
I could not fissure you could not fissure he could not fissure we could not fissure you could not fissure they could not fissure	I could not be fissuring you could not be fissuring he could not be fissuring we could not be fissuring you could not be fissuring they could not be fissuring
Perfect	V-ing perfect
I could not have fissured you could not have fissured he could not have fissured we could not have fissured you could not have fissured they could not have fissured	I could not have been fissuring you could not have been fissuring he could not have been fissuring we could not have been fissuring you could not have been fissuring they could not have been fissuring

Interrogative form

Simple form	V-ing form
could I fissure? could you fissure? could he fissure? could we fissure? could you fissure? could they fissure?	could I be fissuring? could you be fissuring? could he be fissuring? could we be fissuring? could you be fissuring? could they be fissuring?
Perfect	V-ing perfect
could I have fissured? could you have fissured? could he have fissured? could we have fissured? could you have fissured? could they have fissured?	could I have been fissuring? could you have been fissuring? could he have been fissuring? could we have been fissuring? could you have been fissuring? could they have been fissuring?

Interro-negative form

Simple form	V-ing form
could I not fissure? could you not fissure? could he not fissure? could we not fissure? could you not fissure? could they not fissure?	could I not be fissuring? could you not be fissuring? could he not be fissuring? could we not be fissuring? could you not be fissuring? could they not be fissuring?
Perfect	V-ing perfect
could I not have fissured? could you not have fissured? could he not have fissured? could we not have fissured? could you not have fissured? could they not have fissured?	could I not have been fissuring? could you not have been fissuring? could he not have been fissuring? could we not have been fissuring? could you not have been fissuring? could they not have been fissuring?