English verb conjugation
COULD PRIZE

Regular verb: prize - prized - prized

Affirmation

Simple form	V-ing form
I could prize you could prize she could prize we could prize you could prize they could prize	I could be prizing you could be prizing she 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 she 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 she 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 couldn't prize you couldn't prize she couldn't prize we couldn't prize you couldn't prize they couldn't prize	I couldn't be prizing you couldn't be prizing she couldn't be prizing we couldn't be prizing you couldn't be prizing they couldn't be prizing
Perfect	V-ing perfect
I couldn't have prized you couldn't have prized she couldn't have prized we couldn't have prized you couldn't have prized they couldn't have prized	I couldn't have been prizing you couldn't have been prizing she couldn't have been prizing we couldn't have been prizing you couldn't have been prizing they couldn't have been prizing

Interrogative form

Simple form	V-ing form
could I prize? could you prize? could she prize? could we prize? could you prize? could they prize?	could I be prizing? could you be prizing? could she 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 she 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 she 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
couldn't I prize? couldn't you prize? couldn't she prize? couldn't we prize? couldn't you prize? couldn't they prize?	couldn't I be prizing? couldn't you be prizing? couldn't she be prizing? couldn't we be prizing? couldn't you be prizing? couldn't they be prizing?
Perfect	V-ing perfect
couldn't I have prized? couldn't you have prized? couldn't she have prized? couldn't we have prized? couldn't you have prized? couldn't they have prized?	couldn't I have been prizing? couldn't you have been prizing? couldn't she have been prizing? couldn't we have been prizing? couldn't you have been prizing? couldn't they have been prizing?