I could distemper you could distemper he could distemper we could distemper you could distemper they could distemper
V-ing form
I could be distempering you could be distempering he could be distempering we could be distempering you could be distempering they could be distempering
Perfect
I could have distempered you could have distempered he could have distempered we could have distempered you could have distempered they could have distempered
V-ing perfect
I could have been distempering you could have been distempering he could have been distempering we could have been distempering you could have been distempering they could have been distempering
Negation
Simple form
I could not distemper you could not distemper he could not distemper we could not distemper you could not distemper they could not distemper
V-ing form
I could not be distempering you could not be distempering he could not be distempering we could not be distempering you could not be distempering they could not be distempering
Perfect
I could not have distempered you could not have distempered he could not have distempered we could not have distempered you could not have distempered they could not have distempered
V-ing perfect
I could not have been distempering you could not have been distempering he could not have been distempering we could not have been distempering you could not have been distempering they could not have been distempering
Interrogative form
Simple form
could I distemper? could you distemper? could he distemper? could we distemper? could you distemper? could they distemper?
V-ing form
could I be distempering? could you be distempering? could he be distempering? could we be distempering? could you be distempering? could they be distempering?
Perfect
could I have distempered? could you have distempered? could he have distempered? could we have distempered? could you have distempered? could they have distempered?
V-ing perfect
could I have been distempering? could you have been distempering? could he have been distempering? could we have been distempering? could you have been distempering? could they have been distempering?
Interro-negative form
Simple form
could I not distemper? could you not distemper? could he not distemper? could we not distemper? could you not distemper? could they not distemper?
V-ing form
could I not be distempering? could you not be distempering? could he not be distempering? could we not be distempering? could you not be distempering? could they not be distempering?
Perfect
could I not have distempered? could you not have distempered? could he not have distempered? could we not have distempered? could you not have distempered? could they not have distempered?
V-ing perfect
could I not have been distempering? could you not have been distempering? could he not have been distempering? could we not have been distempering? could you not have been distempering? could they not have been distempering?