I could accuse you could accuse he could accuse we could accuse you could accuse they could accuse
V-ing form
I could be accusing you could be accusing he could be accusing we could be accusing you could be accusing they could be accusing
Perfect
I could have accused you could have accused he could have accused we could have accused you could have accused they could have accused
V-ing perfect
I could have been accusing you could have been accusing he could have been accusing we could have been accusing you could have been accusing they could have been accusing
Negation
Simple form
I could not accuse you could not accuse he could not accuse we could not accuse you could not accuse they could not accuse
V-ing form
I could not be accusing you could not be accusing he could not be accusing we could not be accusing you could not be accusing they could not be accusing
Perfect
I could not have accused you could not have accused he could not have accused we could not have accused you could not have accused they could not have accused
V-ing perfect
I could not have been accusing you could not have been accusing he could not have been accusing we could not have been accusing you could not have been accusing they could not have been accusing
Interrogative form
Simple form
could I accuse? could you accuse? could he accuse? could we accuse? could you accuse? could they accuse?
V-ing form
could I be accusing? could you be accusing? could he be accusing? could we be accusing? could you be accusing? could they be accusing?
Perfect
could I have accused? could you have accused? could he have accused? could we have accused? could you have accused? could they have accused?
V-ing perfect
could I have been accusing? could you have been accusing? could he have been accusing? could we have been accusing? could you have been accusing? could they have been accusing?
Interro-negative form
Simple form
could I not accuse? could you not accuse? could he not accuse? could we not accuse? could you not accuse? could they not accuse?
V-ing form
could I not be accusing? could you not be accusing? could he not be accusing? could we not be accusing? could you not be accusing? could they not be accusing?
Perfect
could I not have accused? could you not have accused? could he not have accused? could we not have accused? could you not have accused? could they not have accused?
V-ing perfect
could I not have been accusing? could you not have been accusing? could he not have been accusing? could we not have been accusing? could you not have been accusing? could they not have been accusing?