English verb conjugation
COULD KIPPER

Regular verb: kipper - kippered - kippered

Affirmation

Simple form	V-ing form
I could kipper you could kipper he could kipper we could kipper you could kipper they could kipper	I could be kippering you could be kippering he could be kippering we could be kippering you could be kippering they could be kippering
Perfect	V-ing perfect
I could have kippered you could have kippered he could have kippered we could have kippered you could have kippered they could have kippered	I could have been kippering you could have been kippering he could have been kippering we could have been kippering you could have been kippering they could have been kippering

Negation

Simple form	V-ing form
I couldn't kipper you couldn't kipper he couldn't kipper we couldn't kipper you couldn't kipper they couldn't kipper	I couldn't be kippering you couldn't be kippering he couldn't be kippering we couldn't be kippering you couldn't be kippering they couldn't be kippering
Perfect	V-ing perfect
I couldn't have kippered you couldn't have kippered he couldn't have kippered we couldn't have kippered you couldn't have kippered they couldn't have kippered	I couldn't have been kippering you couldn't have been kippering he couldn't have been kippering we couldn't have been kippering you couldn't have been kippering they couldn't have been kippering

Interrogative form

Simple form	V-ing form
could I kipper? could you kipper? could he kipper? could we kipper? could you kipper? could they kipper?	could I be kippering? could you be kippering? could he be kippering? could we be kippering? could you be kippering? could they be kippering?
Perfect	V-ing perfect
could I have kippered? could you have kippered? could he have kippered? could we have kippered? could you have kippered? could they have kippered?	could I have been kippering? could you have been kippering? could he have been kippering? could we have been kippering? could you have been kippering? could they have been kippering?

Interro-negative form

Simple form	V-ing form
couldn't I kipper? couldn't you kipper? couldn't he kipper? couldn't we kipper? couldn't you kipper? couldn't they kipper?	couldn't I be kippering? couldn't you be kippering? couldn't he be kippering? couldn't we be kippering? couldn't you be kippering? couldn't they be kippering?
Perfect	V-ing perfect
couldn't I have kippered? couldn't you have kippered? couldn't he have kippered? couldn't we have kippered? couldn't you have kippered? couldn't they have kippered?	couldn't I have been kippering? couldn't you have been kippering? couldn't he have been kippering? couldn't we have been kippering? couldn't you have been kippering? couldn't they have been kippering?