English verb conjugation
COULD CEASE

Regular verb: cease - ceased - ceased

Affirmation

Simple form	V-ing form
I could cease you could cease he could cease we could cease you could cease they could cease	I could be ceasing you could be ceasing he could be ceasing we could be ceasing you could be ceasing they could be ceasing
Perfect	V-ing perfect
I could have ceased you could have ceased he could have ceased we could have ceased you could have ceased they could have ceased	I could have been ceasing you could have been ceasing he could have been ceasing we could have been ceasing you could have been ceasing they could have been ceasing

Negation

Simple form	V-ing form
I could not cease you could not cease he could not cease we could not cease you could not cease they could not cease	I could not be ceasing you could not be ceasing he could not be ceasing we could not be ceasing you could not be ceasing they could not be ceasing
Perfect	V-ing perfect
I could not have ceased you could not have ceased he could not have ceased we could not have ceased you could not have ceased they could not have ceased	I could not have been ceasing you could not have been ceasing he could not have been ceasing we could not have been ceasing you could not have been ceasing they could not have been ceasing

Interrogative form

Simple form	V-ing form
could I cease? could you cease? could he cease? could we cease? could you cease? could they cease?	could I be ceasing? could you be ceasing? could he be ceasing? could we be ceasing? could you be ceasing? could they be ceasing?
Perfect	V-ing perfect
could I have ceased? could you have ceased? could he have ceased? could we have ceased? could you have ceased? could they have ceased?	could I have been ceasing? could you have been ceasing? could he have been ceasing? could we have been ceasing? could you have been ceasing? could they have been ceasing?

Interro-negative form

Simple form	V-ing form
could I not cease? could you not cease? could he not cease? could we not cease? could you not cease? could they not cease?	could I not be ceasing? could you not be ceasing? could he not be ceasing? could we not be ceasing? could you not be ceasing? could they not be ceasing?
Perfect	V-ing perfect
could I not have ceased? could you not have ceased? could he not have ceased? could we not have ceased? could you not have ceased? could they not have ceased?	could I not have been ceasing? could you not have been ceasing? could he not have been ceasing? could we not have been ceasing? could you not have been ceasing? could they not have been ceasing?