English verb conjugation
COULD FLUFF

Regular verb: fluff - fluffed - fluffed

Affirmation

Simple form	V-ing form
I could fluff you could fluff he could fluff we could fluff you could fluff they could fluff	I could be fluffing you could be fluffing he could be fluffing we could be fluffing you could be fluffing they could be fluffing
Perfect	V-ing perfect
I could have fluffed you could have fluffed he could have fluffed we could have fluffed you could have fluffed they could have fluffed	I could have been fluffing you could have been fluffing he could have been fluffing we could have been fluffing you could have been fluffing they could have been fluffing

Negation

Simple form	V-ing form
I couldn't fluff you couldn't fluff he couldn't fluff we couldn't fluff you couldn't fluff they couldn't fluff	I couldn't be fluffing you couldn't be fluffing he couldn't be fluffing we couldn't be fluffing you couldn't be fluffing they couldn't be fluffing
Perfect	V-ing perfect
I couldn't have fluffed you couldn't have fluffed he couldn't have fluffed we couldn't have fluffed you couldn't have fluffed they couldn't have fluffed	I couldn't have been fluffing you couldn't have been fluffing he couldn't have been fluffing we couldn't have been fluffing you couldn't have been fluffing they couldn't have been fluffing

Interrogative form

Simple form	V-ing form
could I fluff? could you fluff? could he fluff? could we fluff? could you fluff? could they fluff?	could I be fluffing? could you be fluffing? could he be fluffing? could we be fluffing? could you be fluffing? could they be fluffing?
Perfect	V-ing perfect
could I have fluffed? could you have fluffed? could he have fluffed? could we have fluffed? could you have fluffed? could they have fluffed?	could I have been fluffing? could you have been fluffing? could he have been fluffing? could we have been fluffing? could you have been fluffing? could they have been fluffing?

Interro-negative form

Simple form	V-ing form
couldn't I fluff? couldn't you fluff? couldn't he fluff? couldn't we fluff? couldn't you fluff? couldn't they fluff?	couldn't I be fluffing? couldn't you be fluffing? couldn't he be fluffing? couldn't we be fluffing? couldn't you be fluffing? couldn't they be fluffing?
Perfect	V-ing perfect
couldn't I have fluffed? couldn't you have fluffed? couldn't he have fluffed? couldn't we have fluffed? couldn't you have fluffed? couldn't they have fluffed?	couldn't I have been fluffing? couldn't you have been fluffing? couldn't he have been fluffing? couldn't we have been fluffing? couldn't you have been fluffing? couldn't they have been fluffing?