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 could not fluff you could not fluff he could not fluff we could not fluff you could not fluff they could not fluff	I could not be fluffing you could not be fluffing he could not be fluffing we could not be fluffing you could not be fluffing they could not be fluffing
Perfect	V-ing perfect
I could not have fluffed you could not have fluffed he could not have fluffed we could not have fluffed you could not have fluffed they could not have fluffed	I could not have been fluffing you could not have been fluffing he could not have been fluffing we could not have been fluffing you could not have been fluffing they could not 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
could I not fluff? could you not fluff? could he not fluff? could we not fluff? could you not fluff? could they not fluff?	could I not be fluffing? could you not be fluffing? could he not be fluffing? could we not be fluffing? could you not be fluffing? could they not be fluffing?
Perfect	V-ing perfect
could I not have fluffed? could you not have fluffed? could he not have fluffed? could we not have fluffed? could you not have fluffed? could they not have fluffed?	could I not have been fluffing? could you not have been fluffing? could he not have been fluffing? could we not have been fluffing? could you not have been fluffing? could they not have been fluffing?