English verb conjugation
COULD PRIZE

Regular verb: prize - prized - prized

Affirmation

Simple form	V-ing form
I could prize you could prize he could prize we could prize you could prize they could prize	I could be prizing you could be prizing he could be prizing we could be prizing you could be prizing they could be prizing
Perfect	V-ing perfect
I could have prized you could have prized he could have prized we could have prized you could have prized they could have prized	I could have been prizing you could have been prizing he could have been prizing we could have been prizing you could have been prizing they could have been prizing

Negation

Simple form	V-ing form
I could not prize you could not prize he could not prize we could not prize you could not prize they could not prize	I could not be prizing you could not be prizing he could not be prizing we could not be prizing you could not be prizing they could not be prizing
Perfect	V-ing perfect
I could not have prized you could not have prized he could not have prized we could not have prized you could not have prized they could not have prized	I could not have been prizing you could not have been prizing he could not have been prizing we could not have been prizing you could not have been prizing they could not have been prizing

Interrogative form

Simple form	V-ing form
could I prize? could you prize? could he prize? could we prize? could you prize? could they prize?	could I be prizing? could you be prizing? could he be prizing? could we be prizing? could you be prizing? could they be prizing?
Perfect	V-ing perfect
could I have prized? could you have prized? could he have prized? could we have prized? could you have prized? could they have prized?	could I have been prizing? could you have been prizing? could he have been prizing? could we have been prizing? could you have been prizing? could they have been prizing?

Interro-negative form

Simple form	V-ing form
could I not prize? could you not prize? could he not prize? could we not prize? could you not prize? could they not prize?	could I not be prizing? could you not be prizing? could he not be prizing? could we not be prizing? could you not be prizing? could they not be prizing?
Perfect	V-ing perfect
could I not have prized? could you not have prized? could he not have prized? could we not have prized? could you not have prized? could they not have prized?	could I not have been prizing? could you not have been prizing? could he not have been prizing? could we not have been prizing? could you not have been prizing? could they not have been prizing?