I could mother you could mother she could mother we could mother you could mother they could mother
V-ing form
I could be mothering you could be mothering she could be mothering we could be mothering you could be mothering they could be mothering
Perfect
I could have mothered you could have mothered she could have mothered we could have mothered you could have mothered they could have mothered
V-ing perfect
I could have been mothering you could have been mothering she could have been mothering we could have been mothering you could have been mothering they could have been mothering
Negation
Simple form
I could not mother you could not mother she could not mother we could not mother you could not mother they could not mother
V-ing form
I could not be mothering you could not be mothering she could not be mothering we could not be mothering you could not be mothering they could not be mothering
Perfect
I could not have mothered you could not have mothered she could not have mothered we could not have mothered you could not have mothered they could not have mothered
V-ing perfect
I could not have been mothering you could not have been mothering she could not have been mothering we could not have been mothering you could not have been mothering they could not have been mothering
Interrogative form
Simple form
could I mother? could you mother? could she mother? could we mother? could you mother? could they mother?
V-ing form
could I be mothering? could you be mothering? could she be mothering? could we be mothering? could you be mothering? could they be mothering?
Perfect
could I have mothered? could you have mothered? could she have mothered? could we have mothered? could you have mothered? could they have mothered?
V-ing perfect
could I have been mothering? could you have been mothering? could she have been mothering? could we have been mothering? could you have been mothering? could they have been mothering?
Interro-negative form
Simple form
could I not mother? could you not mother? could she not mother? could we not mother? could you not mother? could they not mother?
V-ing form
could I not be mothering? could you not be mothering? could she not be mothering? could we not be mothering? could you not be mothering? could they not be mothering?
Perfect
could I not have mothered? could you not have mothered? could she not have mothered? could we not have mothered? could you not have mothered? could they not have mothered?
V-ing perfect
could I not have been mothering? could you not have been mothering? could she not have been mothering? could we not have been mothering? could you not have been mothering? could they not have been mothering?