English verb conjugation
COULD GAFF

Regular verb: gaff - gaffed - gaffed

Affirmation

Simple form	V-ing form
I could gaff you could gaff he could gaff we could gaff you could gaff they could gaff	I could be gaffing you could be gaffing he could be gaffing we could be gaffing you could be gaffing they could be gaffing
Perfect	V-ing perfect
I could have gaffed you could have gaffed he could have gaffed we could have gaffed you could have gaffed they could have gaffed	I could have been gaffing you could have been gaffing he could have been gaffing we could have been gaffing you could have been gaffing they could have been gaffing

Negation

Simple form	V-ing form
I couldn't gaff you couldn't gaff he couldn't gaff we couldn't gaff you couldn't gaff they couldn't gaff	I couldn't be gaffing you couldn't be gaffing he couldn't be gaffing we couldn't be gaffing you couldn't be gaffing they couldn't be gaffing
Perfect	V-ing perfect
I couldn't have gaffed you couldn't have gaffed he couldn't have gaffed we couldn't have gaffed you couldn't have gaffed they couldn't have gaffed	I couldn't have been gaffing you couldn't have been gaffing he couldn't have been gaffing we couldn't have been gaffing you couldn't have been gaffing they couldn't have been gaffing

Interrogative form

Simple form	V-ing form
could I gaff? could you gaff? could he gaff? could we gaff? could you gaff? could they gaff?	could I be gaffing? could you be gaffing? could he be gaffing? could we be gaffing? could you be gaffing? could they be gaffing?
Perfect	V-ing perfect
could I have gaffed? could you have gaffed? could he have gaffed? could we have gaffed? could you have gaffed? could they have gaffed?	could I have been gaffing? could you have been gaffing? could he have been gaffing? could we have been gaffing? could you have been gaffing? could they have been gaffing?

Interro-negative form

Simple form	V-ing form
couldn't I gaff? couldn't you gaff? couldn't he gaff? couldn't we gaff? couldn't you gaff? couldn't they gaff?	couldn't I be gaffing? couldn't you be gaffing? couldn't he be gaffing? couldn't we be gaffing? couldn't you be gaffing? couldn't they be gaffing?
Perfect	V-ing perfect
couldn't I have gaffed? couldn't you have gaffed? couldn't he have gaffed? couldn't we have gaffed? couldn't you have gaffed? couldn't they have gaffed?	couldn't I have been gaffing? couldn't you have been gaffing? couldn't he have been gaffing? couldn't we have been gaffing? couldn't you have been gaffing? couldn't they have been gaffing?