English verb conjugation
COULD BLUFF

Regular verb: bluff - bluffed - bluffed

Affirmation

Simple form	V-ing form
I could bluff you could bluff she could bluff we could bluff you could bluff they could bluff	I could be bluffing you could be bluffing she could be bluffing we could be bluffing you could be bluffing they could be bluffing
Perfect	V-ing perfect
I could have bluffed you could have bluffed she could have bluffed we could have bluffed you could have bluffed they could have bluffed	I could have been bluffing you could have been bluffing she could have been bluffing we could have been bluffing you could have been bluffing they could have been bluffing

Negation

Simple form	V-ing form
I couldn't bluff you couldn't bluff she couldn't bluff we couldn't bluff you couldn't bluff they couldn't bluff	I couldn't be bluffing you couldn't be bluffing she couldn't be bluffing we couldn't be bluffing you couldn't be bluffing they couldn't be bluffing
Perfect	V-ing perfect
I couldn't have bluffed you couldn't have bluffed she couldn't have bluffed we couldn't have bluffed you couldn't have bluffed they couldn't have bluffed	I couldn't have been bluffing you couldn't have been bluffing she couldn't have been bluffing we couldn't have been bluffing you couldn't have been bluffing they couldn't have been bluffing

Interrogative form

Simple form	V-ing form
could I bluff? could you bluff? could she bluff? could we bluff? could you bluff? could they bluff?	could I be bluffing? could you be bluffing? could she be bluffing? could we be bluffing? could you be bluffing? could they be bluffing?
Perfect	V-ing perfect
could I have bluffed? could you have bluffed? could she have bluffed? could we have bluffed? could you have bluffed? could they have bluffed?	could I have been bluffing? could you have been bluffing? could she have been bluffing? could we have been bluffing? could you have been bluffing? could they have been bluffing?

Interro-negative form

Simple form	V-ing form
couldn't I bluff? couldn't you bluff? couldn't she bluff? couldn't we bluff? couldn't you bluff? couldn't they bluff?	couldn't I be bluffing? couldn't you be bluffing? couldn't she be bluffing? couldn't we be bluffing? couldn't you be bluffing? couldn't they be bluffing?
Perfect	V-ing perfect
couldn't I have bluffed? couldn't you have bluffed? couldn't she have bluffed? couldn't we have bluffed? couldn't you have bluffed? couldn't they have bluffed?	couldn't I have been bluffing? couldn't you have been bluffing? couldn't she have been bluffing? couldn't we have been bluffing? couldn't you have been bluffing? couldn't they have been bluffing?