I could discount you could discount he could discount we could discount you could discount they could discount
V-ing form
I could be discounting you could be discounting he could be discounting we could be discounting you could be discounting they could be discounting
Perfect
I could have discounted you could have discounted he could have discounted we could have discounted you could have discounted they could have discounted
V-ing perfect
I could have been discounting you could have been discounting he could have been discounting we could have been discounting you could have been discounting they could have been discounting
Negation
Simple form
I could not discount you could not discount he could not discount we could not discount you could not discount they could not discount
V-ing form
I could not be discounting you could not be discounting he could not be discounting we could not be discounting you could not be discounting they could not be discounting
Perfect
I could not have discounted you could not have discounted he could not have discounted we could not have discounted you could not have discounted they could not have discounted
V-ing perfect
I could not have been discounting you could not have been discounting he could not have been discounting we could not have been discounting you could not have been discounting they could not have been discounting
Interrogative form
Simple form
could I discount? could you discount? could he discount? could we discount? could you discount? could they discount?
V-ing form
could I be discounting? could you be discounting? could he be discounting? could we be discounting? could you be discounting? could they be discounting?
Perfect
could I have discounted? could you have discounted? could he have discounted? could we have discounted? could you have discounted? could they have discounted?
V-ing perfect
could I have been discounting? could you have been discounting? could he have been discounting? could we have been discounting? could you have been discounting? could they have been discounting?
Interro-negative form
Simple form
could I not discount? could you not discount? could he not discount? could we not discount? could you not discount? could they not discount?
V-ing form
could I not be discounting? could you not be discounting? could he not be discounting? could we not be discounting? could you not be discounting? could they not be discounting?
Perfect
could I not have discounted? could you not have discounted? could he not have discounted? could we not have discounted? could you not have discounted? could they not have discounted?
V-ing perfect
could I not have been discounting? could you not have been discounting? could he not have been discounting? could we not have been discounting? could you not have been discounting? could they not have been discounting?