I could ensphere you could ensphere he could ensphere we could ensphere you could ensphere they could ensphere
V-ing form
I could be ensphering you could be ensphering he could be ensphering we could be ensphering you could be ensphering they could be ensphering
Perfect
I could have ensphered you could have ensphered he could have ensphered we could have ensphered you could have ensphered they could have ensphered
V-ing perfect
I could have been ensphering you could have been ensphering he could have been ensphering we could have been ensphering you could have been ensphering they could have been ensphering
Negation
Simple form
I could not ensphere you could not ensphere he could not ensphere we could not ensphere you could not ensphere they could not ensphere
V-ing form
I could not be ensphering you could not be ensphering he could not be ensphering we could not be ensphering you could not be ensphering they could not be ensphering
Perfect
I could not have ensphered you could not have ensphered he could not have ensphered we could not have ensphered you could not have ensphered they could not have ensphered
V-ing perfect
I could not have been ensphering you could not have been ensphering he could not have been ensphering we could not have been ensphering you could not have been ensphering they could not have been ensphering
Interrogative form
Simple form
could I ensphere? could you ensphere? could he ensphere? could we ensphere? could you ensphere? could they ensphere?
V-ing form
could I be ensphering? could you be ensphering? could he be ensphering? could we be ensphering? could you be ensphering? could they be ensphering?
Perfect
could I have ensphered? could you have ensphered? could he have ensphered? could we have ensphered? could you have ensphered? could they have ensphered?
V-ing perfect
could I have been ensphering? could you have been ensphering? could he have been ensphering? could we have been ensphering? could you have been ensphering? could they have been ensphering?
Interro-negative form
Simple form
could I not ensphere? could you not ensphere? could he not ensphere? could we not ensphere? could you not ensphere? could they not ensphere?
V-ing form
could I not be ensphering? could you not be ensphering? could he not be ensphering? could we not be ensphering? could you not be ensphering? could they not be ensphering?
Perfect
could I not have ensphered? could you not have ensphered? could he not have ensphered? could we not have ensphered? could you not have ensphered? could they not have ensphered?
V-ing perfect
could I not have been ensphering? could you not have been ensphering? could he not have been ensphering? could we not have been ensphering? could you not have been ensphering? could they not have been ensphering?