English verb conjugation
COULD NICKER

Regular verb: nicker - nickered - nickered

Affirmation

Simple form	V-ing form
I could nicker you could nicker she could nicker we could nicker you could nicker they could nicker	I could be nickering you could be nickering she could be nickering we could be nickering you could be nickering they could be nickering
Perfect	V-ing perfect
I could have nickered you could have nickered she could have nickered we could have nickered you could have nickered they could have nickered	I could have been nickering you could have been nickering she could have been nickering we could have been nickering you could have been nickering they could have been nickering

Negation

Simple form	V-ing form
I couldn't nicker you couldn't nicker she couldn't nicker we couldn't nicker you couldn't nicker they couldn't nicker	I couldn't be nickering you couldn't be nickering she couldn't be nickering we couldn't be nickering you couldn't be nickering they couldn't be nickering
Perfect	V-ing perfect
I couldn't have nickered you couldn't have nickered she couldn't have nickered we couldn't have nickered you couldn't have nickered they couldn't have nickered	I couldn't have been nickering you couldn't have been nickering she couldn't have been nickering we couldn't have been nickering you couldn't have been nickering they couldn't have been nickering

Interrogative form

Simple form	V-ing form
could I nicker? could you nicker? could she nicker? could we nicker? could you nicker? could they nicker?	could I be nickering? could you be nickering? could she be nickering? could we be nickering? could you be nickering? could they be nickering?
Perfect	V-ing perfect
could I have nickered? could you have nickered? could she have nickered? could we have nickered? could you have nickered? could they have nickered?	could I have been nickering? could you have been nickering? could she have been nickering? could we have been nickering? could you have been nickering? could they have been nickering?

Interro-negative form

Simple form	V-ing form
couldn't I nicker? couldn't you nicker? couldn't she nicker? couldn't we nicker? couldn't you nicker? couldn't they nicker?	couldn't I be nickering? couldn't you be nickering? couldn't she be nickering? couldn't we be nickering? couldn't you be nickering? couldn't they be nickering?
Perfect	V-ing perfect
couldn't I have nickered? couldn't you have nickered? couldn't she have nickered? couldn't we have nickered? couldn't you have nickered? couldn't they have nickered?	couldn't I have been nickering? couldn't you have been nickering? couldn't she have been nickering? couldn't we have been nickering? couldn't you have been nickering? couldn't they have been nickering?