I could redevelop you could redevelop she could redevelop we could redevelop you could redevelop they could redevelop
V-ing form
I could be redeveloping you could be redeveloping she could be redeveloping we could be redeveloping you could be redeveloping they could be redeveloping
Perfect
I could have redeveloped you could have redeveloped she could have redeveloped we could have redeveloped you could have redeveloped they could have redeveloped
V-ing perfect
I could have been redeveloping you could have been redeveloping she could have been redeveloping we could have been redeveloping you could have been redeveloping they could have been redeveloping
Negation
Simple form
I couldn't redevelop you couldn't redevelop she couldn't redevelop we couldn't redevelop you couldn't redevelop they couldn't redevelop
V-ing form
I couldn't be redeveloping you couldn't be redeveloping she couldn't be redeveloping we couldn't be redeveloping you couldn't be redeveloping they couldn't be redeveloping
Perfect
I couldn't have redeveloped you couldn't have redeveloped she couldn't have redeveloped we couldn't have redeveloped you couldn't have redeveloped they couldn't have redeveloped
V-ing perfect
I couldn't have been redeveloping you couldn't have been redeveloping she couldn't have been redeveloping we couldn't have been redeveloping you couldn't have been redeveloping they couldn't have been redeveloping
Interrogative form
Simple form
could I redevelop? could you redevelop? could she redevelop? could we redevelop? could you redevelop? could they redevelop?
V-ing form
could I be redeveloping? could you be redeveloping? could she be redeveloping? could we be redeveloping? could you be redeveloping? could they be redeveloping?
Perfect
could I have redeveloped? could you have redeveloped? could she have redeveloped? could we have redeveloped? could you have redeveloped? could they have redeveloped?
V-ing perfect
could I have been redeveloping? could you have been redeveloping? could she have been redeveloping? could we have been redeveloping? could you have been redeveloping? could they have been redeveloping?
Interro-negative form
Simple form
couldn't I redevelop? couldn't you redevelop? couldn't she redevelop? couldn't we redevelop? couldn't you redevelop? couldn't they redevelop?
V-ing form
couldn't I be redeveloping? couldn't you be redeveloping? couldn't she be redeveloping? couldn't we be redeveloping? couldn't you be redeveloping? couldn't they be redeveloping?
Perfect
couldn't I have redeveloped? couldn't you have redeveloped? couldn't she have redeveloped? couldn't we have redeveloped? couldn't you have redeveloped? couldn't they have redeveloped?
V-ing perfect
couldn't I have been redeveloping? couldn't you have been redeveloping? couldn't she have been redeveloping? couldn't we have been redeveloping? couldn't you have been redeveloping? couldn't they have been redeveloping?