English verb conjugation
COULD CHAFF

Regular verb: chaff - chaffed - chaffed

Affirmation

Simple form	V-ing form
I could chaff you could chaff he could chaff we could chaff you could chaff they could chaff	I could be chaffing you could be chaffing he could be chaffing we could be chaffing you could be chaffing they could be chaffing
Perfect	V-ing perfect
I could have chaffed you could have chaffed he could have chaffed we could have chaffed you could have chaffed they could have chaffed	I could have been chaffing you could have been chaffing he could have been chaffing we could have been chaffing you could have been chaffing they could have been chaffing

Negation

Simple form	V-ing form
I could not chaff you could not chaff he could not chaff we could not chaff you could not chaff they could not chaff	I could not be chaffing you could not be chaffing he could not be chaffing we could not be chaffing you could not be chaffing they could not be chaffing
Perfect	V-ing perfect
I could not have chaffed you could not have chaffed he could not have chaffed we could not have chaffed you could not have chaffed they could not have chaffed	I could not have been chaffing you could not have been chaffing he could not have been chaffing we could not have been chaffing you could not have been chaffing they could not have been chaffing

Interrogative form

Simple form	V-ing form
could I chaff? could you chaff? could he chaff? could we chaff? could you chaff? could they chaff?	could I be chaffing? could you be chaffing? could he be chaffing? could we be chaffing? could you be chaffing? could they be chaffing?
Perfect	V-ing perfect
could I have chaffed? could you have chaffed? could he have chaffed? could we have chaffed? could you have chaffed? could they have chaffed?	could I have been chaffing? could you have been chaffing? could he have been chaffing? could we have been chaffing? could you have been chaffing? could they have been chaffing?

Interro-negative form

Simple form	V-ing form
could I not chaff? could you not chaff? could he not chaff? could we not chaff? could you not chaff? could they not chaff?	could I not be chaffing? could you not be chaffing? could he not be chaffing? could we not be chaffing? could you not be chaffing? could they not be chaffing?
Perfect	V-ing perfect
could I not have chaffed? could you not have chaffed? could he not have chaffed? could we not have chaffed? could you not have chaffed? could they not have chaffed?	could I not have been chaffing? could you not have been chaffing? could he not have been chaffing? could we not have been chaffing? could you not have been chaffing? could they not have been chaffing?