English verb conjugation
COULD SKIPPER

Regular verb: skipper - skippered - skippered

Affirmation

Simple form	V-ing form
I could skipper you could skipper she could skipper we could skipper you could skipper they could skipper	I could be skippering you could be skippering she 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 she 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 she 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 couldn't skipper you couldn't skipper she couldn't skipper we couldn't skipper you couldn't skipper they couldn't skipper	I couldn't be skippering you couldn't be skippering she couldn't be skippering we couldn't be skippering you couldn't be skippering they couldn't be skippering
Perfect	V-ing perfect
I couldn't have skippered you couldn't have skippered she couldn't have skippered we couldn't have skippered you couldn't have skippered they couldn't have skippered	I couldn't have been skippering you couldn't have been skippering she couldn't have been skippering we couldn't have been skippering you couldn't have been skippering they couldn't have been skippering

Interrogative form

Simple form	V-ing form
could I skipper? could you skipper? could she skipper? could we skipper? could you skipper? could they skipper?	could I be skippering? could you be skippering? could she 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 she 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 she 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
couldn't I skipper? couldn't you skipper? couldn't she skipper? couldn't we skipper? couldn't you skipper? couldn't they skipper?	couldn't I be skippering? couldn't you be skippering? couldn't she be skippering? couldn't we be skippering? couldn't you be skippering? couldn't they be skippering?
Perfect	V-ing perfect
couldn't I have skippered? couldn't you have skippered? couldn't she have skippered? couldn't we have skippered? couldn't you have skippered? couldn't they have skippered?	couldn't I have been skippering? couldn't you have been skippering? couldn't she have been skippering? couldn't we have been skippering? couldn't you have been skippering? couldn't they have been skippering?