English verb conjugation
COULD SKIPPER

Regular verb: skipper - skippered - skippered

Affirmation

Simple form	V-ing form
I could skipper you could skipper he could skipper we could skipper you could skipper they could skipper	I could be skippering you could be skippering he could be skippering we could be skippering you could be skippering they could be skippering
Perfect	V-ing perfect
I could have skippered you could have skippered he could have skippered we could have skippered you could have skippered they could have skippered	I could have been skippering you could have been skippering he could have been skippering we could have been skippering you could have been skippering they could have been skippering

Negation

Simple form	V-ing form
I could not skipper you could not skipper he could not skipper we could not skipper you could not skipper they could not skipper	I could not be skippering you could not be skippering he could not be skippering we could not be skippering you could not be skippering they could not be skippering
Perfect	V-ing perfect
I could not have skippered you could not have skippered he could not have skippered we could not have skippered you could not have skippered they could not have skippered	I could not have been skippering you could not have been skippering he could not have been skippering we could not have been skippering you could not have been skippering they could not have been skippering

Interrogative form

Simple form	V-ing form
could I skipper? could you skipper? could he skipper? could we skipper? could you skipper? could they skipper?	could I be skippering? could you be skippering? could he be skippering? could we be skippering? could you be skippering? could they be skippering?
Perfect	V-ing perfect
could I have skippered? could you have skippered? could he have skippered? could we have skippered? could you have skippered? could they have skippered?	could I have been skippering? could you have been skippering? could he have been skippering? could we have been skippering? could you have been skippering? could they have been skippering?

Interro-negative form

Simple form	V-ing form
could I not skipper? could you not skipper? could he not skipper? could we not skipper? could you not skipper? could they not skipper?	could I not be skippering? could you not be skippering? could he not be skippering? could we not be skippering? could you not be skippering? could they not be skippering?
Perfect	V-ing perfect
could I not have skippered? could you not have skippered? could he not have skippered? could we not have skippered? could you not have skippered? could they not have skippered?	could I not have been skippering? could you not have been skippering? could he not have been skippering? could we not have been skippering? could you not have been skippering? could they not have been skippering?