English verb conjugation
COULD CAPER

Regular verb: caper - capered - capered

Affirmation

Simple form	V-ing form
I could caper you could caper he could caper we could caper you could caper they could caper	I could be capering you could be capering he could be capering we could be capering you could be capering they could be capering
Perfect	V-ing perfect
I could have capered you could have capered he could have capered we could have capered you could have capered they could have capered	I could have been capering you could have been capering he could have been capering we could have been capering you could have been capering they could have been capering

Negation

Simple form	V-ing form
I couldn't caper you couldn't caper he couldn't caper we couldn't caper you couldn't caper they couldn't caper	I couldn't be capering you couldn't be capering he couldn't be capering we couldn't be capering you couldn't be capering they couldn't be capering
Perfect	V-ing perfect
I couldn't have capered you couldn't have capered he couldn't have capered we couldn't have capered you couldn't have capered they couldn't have capered	I couldn't have been capering you couldn't have been capering he couldn't have been capering we couldn't have been capering you couldn't have been capering they couldn't have been capering

Interrogative form

Simple form	V-ing form
could I caper? could you caper? could he caper? could we caper? could you caper? could they caper?	could I be capering? could you be capering? could he be capering? could we be capering? could you be capering? could they be capering?
Perfect	V-ing perfect
could I have capered? could you have capered? could he have capered? could we have capered? could you have capered? could they have capered?	could I have been capering? could you have been capering? could he have been capering? could we have been capering? could you have been capering? could they have been capering?

Interro-negative form

Simple form	V-ing form
couldn't I caper? couldn't you caper? couldn't he caper? couldn't we caper? couldn't you caper? couldn't they caper?	couldn't I be capering? couldn't you be capering? couldn't he be capering? couldn't we be capering? couldn't you be capering? couldn't they be capering?
Perfect	V-ing perfect
couldn't I have capered? couldn't you have capered? couldn't he have capered? couldn't we have capered? couldn't you have capered? couldn't they have capered?	couldn't I have been capering? couldn't you have been capering? couldn't he have been capering? couldn't we have been capering? couldn't you have been capering? couldn't they have been capering?