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