English verb conjugation
CAN GAFF

Regular verb: gaff - gaffed - gaffed

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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