English verb conjugation
COULD PRIME

Regular verb: prime - primed - primed

Affirmation

Simple form	V-ing form
I could prime you could prime he could prime we could prime you could prime they could prime	I could be priming you could be priming he could be priming we could be priming you could be priming they could be priming
Perfect	V-ing perfect
I could have primed you could have primed he could have primed we could have primed you could have primed they could have primed	I could have been priming you could have been priming he could have been priming we could have been priming you could have been priming they could have been priming

Negation

Simple form	V-ing form
I could not prime you could not prime he could not prime we could not prime you could not prime they could not prime	I could not be priming you could not be priming he could not be priming we could not be priming you could not be priming they could not be priming
Perfect	V-ing perfect
I could not have primed you could not have primed he could not have primed we could not have primed you could not have primed they could not have primed	I could not have been priming you could not have been priming he could not have been priming we could not have been priming you could not have been priming they could not have been priming

Interrogative form

Simple form	V-ing form
could I prime? could you prime? could he prime? could we prime? could you prime? could they prime?	could I be priming? could you be priming? could he be priming? could we be priming? could you be priming? could they be priming?
Perfect	V-ing perfect
could I have primed? could you have primed? could he have primed? could we have primed? could you have primed? could they have primed?	could I have been priming? could you have been priming? could he have been priming? could we have been priming? could you have been priming? could they have been priming?

Interro-negative form

Simple form	V-ing form
could I not prime? could you not prime? could he not prime? could we not prime? could you not prime? could they not prime?	could I not be priming? could you not be priming? could he not be priming? could we not be priming? could you not be priming? could they not be priming?
Perfect	V-ing perfect
could I not have primed? could you not have primed? could he not have primed? could we not have primed? could you not have primed? could they not have primed?	could I not have been priming? could you not have been priming? could he not have been priming? could we not have been priming? could you not have been priming? could they not have been priming?