English verb conjugation
COULD COX

Regular verb: cox - coxed - coxed

Affirmation

Simple form	V-ing form
I could cox you could cox she could cox we could cox you could cox they could cox	I could be coxing you could be coxing she could be coxing we could be coxing you could be coxing they could be coxing
Perfect	V-ing perfect
I could have coxed you could have coxed she could have coxed we could have coxed you could have coxed they could have coxed	I could have been coxing you could have been coxing she could have been coxing we could have been coxing you could have been coxing they could have been coxing

Negation

Simple form	V-ing form
I could not cox you could not cox she could not cox we could not cox you could not cox they could not cox	I could not be coxing you could not be coxing she could not be coxing we could not be coxing you could not be coxing they could not be coxing
Perfect	V-ing perfect
I could not have coxed you could not have coxed she could not have coxed we could not have coxed you could not have coxed they could not have coxed	I could not have been coxing you could not have been coxing she could not have been coxing we could not have been coxing you could not have been coxing they could not have been coxing

Interrogative form

Simple form	V-ing form
could I cox? could you cox? could she cox? could we cox? could you cox? could they cox?	could I be coxing? could you be coxing? could she be coxing? could we be coxing? could you be coxing? could they be coxing?
Perfect	V-ing perfect
could I have coxed? could you have coxed? could she have coxed? could we have coxed? could you have coxed? could they have coxed?	could I have been coxing? could you have been coxing? could she have been coxing? could we have been coxing? could you have been coxing? could they have been coxing?

Interro-negative form

Simple form	V-ing form
could I not cox? could you not cox? could she not cox? could we not cox? could you not cox? could they not cox?	could I not be coxing? could you not be coxing? could she not be coxing? could we not be coxing? could you not be coxing? could they not be coxing?
Perfect	V-ing perfect
could I not have coxed? could you not have coxed? could she not have coxed? could we not have coxed? could you not have coxed? could they not have coxed?	could I not have been coxing? could you not have been coxing? could she not have been coxing? could we not have been coxing? could you not have been coxing? could they not have been coxing?