English verb conjugation
COULD REBUFF

Regular verb: rebuff - rebuffed - rebuffed

Affirmation

Simple form	V-ing form
I could rebuff you could rebuff he could rebuff we could rebuff you could rebuff they could rebuff	I could be rebuffing you could be rebuffing he could be rebuffing we could be rebuffing you could be rebuffing they could be rebuffing
Perfect	V-ing perfect
I could have rebuffed you could have rebuffed he could have rebuffed we could have rebuffed you could have rebuffed they could have rebuffed	I could have been rebuffing you could have been rebuffing he could have been rebuffing we could have been rebuffing you could have been rebuffing they could have been rebuffing

Negation

Simple form	V-ing form
I couldn't rebuff you couldn't rebuff he couldn't rebuff we couldn't rebuff you couldn't rebuff they couldn't rebuff	I couldn't be rebuffing you couldn't be rebuffing he couldn't be rebuffing we couldn't be rebuffing you couldn't be rebuffing they couldn't be rebuffing
Perfect	V-ing perfect
I couldn't have rebuffed you couldn't have rebuffed he couldn't have rebuffed we couldn't have rebuffed you couldn't have rebuffed they couldn't have rebuffed	I couldn't have been rebuffing you couldn't have been rebuffing he couldn't have been rebuffing we couldn't have been rebuffing you couldn't have been rebuffing they couldn't have been rebuffing

Interrogative form

Simple form	V-ing form
could I rebuff? could you rebuff? could he rebuff? could we rebuff? could you rebuff? could they rebuff?	could I be rebuffing? could you be rebuffing? could he be rebuffing? could we be rebuffing? could you be rebuffing? could they be rebuffing?
Perfect	V-ing perfect
could I have rebuffed? could you have rebuffed? could he have rebuffed? could we have rebuffed? could you have rebuffed? could they have rebuffed?	could I have been rebuffing? could you have been rebuffing? could he have been rebuffing? could we have been rebuffing? could you have been rebuffing? could they have been rebuffing?

Interro-negative form

Simple form	V-ing form
couldn't I rebuff? couldn't you rebuff? couldn't he rebuff? couldn't we rebuff? couldn't you rebuff? couldn't they rebuff?	couldn't I be rebuffing? couldn't you be rebuffing? couldn't he be rebuffing? couldn't we be rebuffing? couldn't you be rebuffing? couldn't they be rebuffing?
Perfect	V-ing perfect
couldn't I have rebuffed? couldn't you have rebuffed? couldn't he have rebuffed? couldn't we have rebuffed? couldn't you have rebuffed? couldn't they have rebuffed?	couldn't I have been rebuffing? couldn't you have been rebuffing? couldn't he have been rebuffing? couldn't we have been rebuffing? couldn't you have been rebuffing? couldn't they have been rebuffing?