English verb conjugation
COULD PREDELIVER

Regular verb: predeliver - predelivered - predelivered

Affirmation

Simple form	V-ing form
I could predeliver you could predeliver he could predeliver we could predeliver you could predeliver they could predeliver	I could be predelivering you could be predelivering he could be predelivering we could be predelivering you could be predelivering they could be predelivering
Perfect	V-ing perfect
I could have predelivered you could have predelivered he could have predelivered we could have predelivered you could have predelivered they could have predelivered	I could have been predelivering you could have been predelivering he could have been predelivering we could have been predelivering you could have been predelivering they could have been predelivering

Negation

Simple form	V-ing form
I could not predeliver you could not predeliver he could not predeliver we could not predeliver you could not predeliver they could not predeliver	I could not be predelivering you could not be predelivering he could not be predelivering we could not be predelivering you could not be predelivering they could not be predelivering
Perfect	V-ing perfect
I could not have predelivered you could not have predelivered he could not have predelivered we could not have predelivered you could not have predelivered they could not have predelivered	I could not have been predelivering you could not have been predelivering he could not have been predelivering we could not have been predelivering you could not have been predelivering they could not have been predelivering

Interrogative form

Simple form	V-ing form
could I predeliver? could you predeliver? could he predeliver? could we predeliver? could you predeliver? could they predeliver?	could I be predelivering? could you be predelivering? could he be predelivering? could we be predelivering? could you be predelivering? could they be predelivering?
Perfect	V-ing perfect
could I have predelivered? could you have predelivered? could he have predelivered? could we have predelivered? could you have predelivered? could they have predelivered?	could I have been predelivering? could you have been predelivering? could he have been predelivering? could we have been predelivering? could you have been predelivering? could they have been predelivering?

Interro-negative form

Simple form	V-ing form
could I not predeliver? could you not predeliver? could he not predeliver? could we not predeliver? could you not predeliver? could they not predeliver?	could I not be predelivering? could you not be predelivering? could he not be predelivering? could we not be predelivering? could you not be predelivering? could they not be predelivering?
Perfect	V-ing perfect
could I not have predelivered? could you not have predelivered? could he not have predelivered? could we not have predelivered? could you not have predelivered? could they not have predelivered?	could I not have been predelivering? could you not have been predelivering? could he not have been predelivering? could we not have been predelivering? could you not have been predelivering? could they not have been predelivering?