English verb conjugation
COULD FEOFF

Regular verb: feoff - feoffed - feoffed

Affirmation

Simple form	V-ing form
I could feoff you could feoff he could feoff we could feoff you could feoff they could feoff	I could be feoffing you could be feoffing he could be feoffing we could be feoffing you could be feoffing they could be feoffing
Perfect	V-ing perfect
I could have feoffed you could have feoffed he could have feoffed we could have feoffed you could have feoffed they could have feoffed	I could have been feoffing you could have been feoffing he could have been feoffing we could have been feoffing you could have been feoffing they could have been feoffing

Negation

Simple form	V-ing form
I couldn't feoff you couldn't feoff he couldn't feoff we couldn't feoff you couldn't feoff they couldn't feoff	I couldn't be feoffing you couldn't be feoffing he couldn't be feoffing we couldn't be feoffing you couldn't be feoffing they couldn't be feoffing
Perfect	V-ing perfect
I couldn't have feoffed you couldn't have feoffed he couldn't have feoffed we couldn't have feoffed you couldn't have feoffed they couldn't have feoffed	I couldn't have been feoffing you couldn't have been feoffing he couldn't have been feoffing we couldn't have been feoffing you couldn't have been feoffing they couldn't have been feoffing

Interrogative form

Simple form	V-ing form
could I feoff? could you feoff? could he feoff? could we feoff? could you feoff? could they feoff?	could I be feoffing? could you be feoffing? could he be feoffing? could we be feoffing? could you be feoffing? could they be feoffing?
Perfect	V-ing perfect
could I have feoffed? could you have feoffed? could he have feoffed? could we have feoffed? could you have feoffed? could they have feoffed?	could I have been feoffing? could you have been feoffing? could he have been feoffing? could we have been feoffing? could you have been feoffing? could they have been feoffing?

Interro-negative form

Simple form	V-ing form
couldn't I feoff? couldn't you feoff? couldn't he feoff? couldn't we feoff? couldn't you feoff? couldn't they feoff?	couldn't I be feoffing? couldn't you be feoffing? couldn't he be feoffing? couldn't we be feoffing? couldn't you be feoffing? couldn't they be feoffing?
Perfect	V-ing perfect
couldn't I have feoffed? couldn't you have feoffed? couldn't he have feoffed? couldn't we have feoffed? couldn't you have feoffed? couldn't they have feoffed?	couldn't I have been feoffing? couldn't you have been feoffing? couldn't he have been feoffing? couldn't we have been feoffing? couldn't you have been feoffing? couldn't they have been feoffing?