I could harbinger you could harbinger she could harbinger we could harbinger you could harbinger they could harbinger
V-ing form
I could be harbingering you could be harbingering she could be harbingering we could be harbingering you could be harbingering they could be harbingering
Perfect
I could have harbingered you could have harbingered she could have harbingered we could have harbingered you could have harbingered they could have harbingered
V-ing perfect
I could have been harbingering you could have been harbingering she could have been harbingering we could have been harbingering you could have been harbingering they could have been harbingering
Negation
Simple form
I could not harbinger you could not harbinger she could not harbinger we could not harbinger you could not harbinger they could not harbinger
V-ing form
I could not be harbingering you could not be harbingering she could not be harbingering we could not be harbingering you could not be harbingering they could not be harbingering
Perfect
I could not have harbingered you could not have harbingered she could not have harbingered we could not have harbingered you could not have harbingered they could not have harbingered
V-ing perfect
I could not have been harbingering you could not have been harbingering she could not have been harbingering we could not have been harbingering you could not have been harbingering they could not have been harbingering
Interrogative form
Simple form
could I harbinger? could you harbinger? could she harbinger? could we harbinger? could you harbinger? could they harbinger?
V-ing form
could I be harbingering? could you be harbingering? could she be harbingering? could we be harbingering? could you be harbingering? could they be harbingering?
Perfect
could I have harbingered? could you have harbingered? could she have harbingered? could we have harbingered? could you have harbingered? could they have harbingered?
V-ing perfect
could I have been harbingering? could you have been harbingering? could she have been harbingering? could we have been harbingering? could you have been harbingering? could they have been harbingering?
Interro-negative form
Simple form
could I not harbinger? could you not harbinger? could she not harbinger? could we not harbinger? could you not harbinger? could they not harbinger?
V-ing form
could I not be harbingering? could you not be harbingering? could she not be harbingering? could we not be harbingering? could you not be harbingering? could they not be harbingering?
Perfect
could I not have harbingered? could you not have harbingered? could she not have harbingered? could we not have harbingered? could you not have harbingered? could they not have harbingered?
V-ing perfect
could I not have been harbingering? could you not have been harbingering? could she not have been harbingering? could we not have been harbingering? could you not have been harbingering? could they not have been harbingering?