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 couldn't predeliver you couldn't predeliver he couldn't predeliver we couldn't predeliver you couldn't predeliver they couldn't predeliver	I couldn't be predelivering you couldn't be predelivering he couldn't be predelivering we couldn't be predelivering you couldn't be predelivering they couldn't be predelivering
Perfect	V-ing perfect
I couldn't have predelivered you couldn't have predelivered he couldn't have predelivered we couldn't have predelivered you couldn't have predelivered they couldn't have predelivered	I couldn't have been predelivering you couldn't have been predelivering he couldn't have been predelivering we couldn't have been predelivering you couldn't have been predelivering they couldn't 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
couldn't I predeliver? couldn't you predeliver? couldn't he predeliver? couldn't we predeliver? couldn't you predeliver? couldn't they predeliver?	couldn't I be predelivering? couldn't you be predelivering? couldn't he be predelivering? couldn't we be predelivering? couldn't you be predelivering? couldn't they be predelivering?
Perfect	V-ing perfect
couldn't I have predelivered? couldn't you have predelivered? couldn't he have predelivered? couldn't we have predelivered? couldn't you have predelivered? couldn't they have predelivered?	couldn't I have been predelivering? couldn't you have been predelivering? couldn't he have been predelivering? couldn't we have been predelivering? couldn't you have been predelivering? couldn't they have been predelivering?