I could reward you could reward he could reward we could reward you could reward they could reward
V-ing form
I could be rewarding you could be rewarding he could be rewarding we could be rewarding you could be rewarding they could be rewarding
Perfect
I could have rewarded you could have rewarded he could have rewarded we could have rewarded you could have rewarded they could have rewarded
V-ing perfect
I could have been rewarding you could have been rewarding he could have been rewarding we could have been rewarding you could have been rewarding they could have been rewarding
Negation
Simple form
I could not reward you could not reward he could not reward we could not reward you could not reward they could not reward
V-ing form
I could not be rewarding you could not be rewarding he could not be rewarding we could not be rewarding you could not be rewarding they could not be rewarding
Perfect
I could not have rewarded you could not have rewarded he could not have rewarded we could not have rewarded you could not have rewarded they could not have rewarded
V-ing perfect
I could not have been rewarding you could not have been rewarding he could not have been rewarding we could not have been rewarding you could not have been rewarding they could not have been rewarding
Interrogative form
Simple form
could I reward? could you reward? could he reward? could we reward? could you reward? could they reward?
V-ing form
could I be rewarding? could you be rewarding? could he be rewarding? could we be rewarding? could you be rewarding? could they be rewarding?
Perfect
could I have rewarded? could you have rewarded? could he have rewarded? could we have rewarded? could you have rewarded? could they have rewarded?
V-ing perfect
could I have been rewarding? could you have been rewarding? could he have been rewarding? could we have been rewarding? could you have been rewarding? could they have been rewarding?
Interro-negative form
Simple form
could I not reward? could you not reward? could he not reward? could we not reward? could you not reward? could they not reward?
V-ing form
could I not be rewarding? could you not be rewarding? could he not be rewarding? could we not be rewarding? could you not be rewarding? could they not be rewarding?
Perfect
could I not have rewarded? could you not have rewarded? could he not have rewarded? could we not have rewarded? could you not have rewarded? could they not have rewarded?
V-ing perfect
could I not have been rewarding? could you not have been rewarding? could he not have been rewarding? could we not have been rewarding? could you not have been rewarding? could they not have been rewarding?