English verb conjugation
COULD REDD

Regular verb: redd - redded - redded

Affirmation

Simple form	V-ing form
I could redd you could redd she could redd we could redd you could redd they could redd	I could be redding you could be redding she could be redding we could be redding you could be redding they could be redding
Perfect	V-ing perfect
I could have redded you could have redded she could have redded we could have redded you could have redded they could have redded	I could have been redding you could have been redding she could have been redding we could have been redding you could have been redding they could have been redding

Negation

Simple form	V-ing form
I couldn't redd you couldn't redd she couldn't redd we couldn't redd you couldn't redd they couldn't redd	I couldn't be redding you couldn't be redding she couldn't be redding we couldn't be redding you couldn't be redding they couldn't be redding
Perfect	V-ing perfect
I couldn't have redded you couldn't have redded she couldn't have redded we couldn't have redded you couldn't have redded they couldn't have redded	I couldn't have been redding you couldn't have been redding she couldn't have been redding we couldn't have been redding you couldn't have been redding they couldn't have been redding

Interrogative form

Simple form	V-ing form
could I redd? could you redd? could she redd? could we redd? could you redd? could they redd?	could I be redding? could you be redding? could she be redding? could we be redding? could you be redding? could they be redding?
Perfect	V-ing perfect
could I have redded? could you have redded? could she have redded? could we have redded? could you have redded? could they have redded?	could I have been redding? could you have been redding? could she have been redding? could we have been redding? could you have been redding? could they have been redding?

Interro-negative form

Simple form	V-ing form
couldn't I redd? couldn't you redd? couldn't she redd? couldn't we redd? couldn't you redd? couldn't they redd?	couldn't I be redding? couldn't you be redding? couldn't she be redding? couldn't we be redding? couldn't you be redding? couldn't they be redding?
Perfect	V-ing perfect
couldn't I have redded? couldn't you have redded? couldn't she have redded? couldn't we have redded? couldn't you have redded? couldn't they have redded?	couldn't I have been redding? couldn't you have been redding? couldn't she have been redding? couldn't we have been redding? couldn't you have been redding? couldn't they have been redding?